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PERPETUAL

TROUBLE SHOOTER'S MANUAL . :.

by

JOHN F. RIDER

Published by

JOHN F. RIDER 1440 Broadway New York City


Other manuals by John F. Rider

Perpetual Trouble Shooter's Manual Volume I

About 1000 pages. Price $7.50

Perpetual Trouble Shooter's Manual Volume II


Perpetual Trouble Shooter's Manual Volume III


Specialized Auto Radio Manual Volume I


The Perpetual Trouble Shooter's Manuals listed above are the "standard" of

the radio service industry.

Their absolute supremacy as sources of accurate-complete and detailed radio

service data is established by their use by the world-famous tube manufacturing

organizations, such as E. T. Cunningham, Inc., National Union Radio Corp.,

RCA Radiotron, Inc.-the most famous service instrument manufacturers, like

Weston, Hickok, Readrite and Supreme and their use and recommendation by

the world's leading radio receiver manufacturers.

Entire contents copyright 1933 by John F. Rider

Printed in U. S. A.


AUTHOR'S FOREWORD

This issue of Volume I is slightly different than earlier printings. One of the changes

is to be found in the method of indexing. You will note that it is the same as used in Volumes

II and III as recently issued.

The reason for this change is that the method of indexing as originally introduced in Vol-

ume III proved so much more popular than that previously employed in Volumes I and II, that

it was deemed most advantageous to establish a uniform index which would serve best over the

years to come.

Present owners of Volumes II and III, that is, owners of these manuals purchased prior to

November 15, may find that index which accompanies Volume III and the index in Volume II does

not conform with the pages in Volume I. We regret the slight inconvenience caused, but feel

that it is all for the better.

The complete index mentioned above and the Volume II index mentioned above can be used

to determine if the service information desired is to be found in Volume I. Reference to the in-

dividual index in Volume I will then indicate the correct page.

Another change in this revised issue is that the text matter contained in the front of the

earlier printings has been removed. This is the result of requests from service men who found

very little occasion at this date to refer to text originally prepared years ago.

In every other respect this Volume I is fully the equal of the earlier issues and in very many

cases, has additional information not contained in earlier issues.

The pages in this revised issue have been printed from engravings and we trust that the in-

creased legibility of type, the increased number of cases where electrical values are included, the

increased number of socket layouts-in general more data-will be received with favor and will

perhaps offset the slight inconvenience with respect to the indexing.

JOHN F. RIDER.



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PIEDMONT AMATEUR RADIO ASSOCATION OF

PORTLAND, OREGON

5017 N Interstate Ave. Phone WAlnut 3393

4


INDEX THE A -C DAYTON CO.

MODEL PAGE XL -5 XL -20 XL -25 XL -50 XL -60 XL -10 XL -70 XL -30 XL -61 Battery AC -63 AC -65 AC -66 Navigator

5 -Tube Reflex B Eliminator

Schematic 1-1 Schematic 1-1 Schematic 1-1 Schematic, socket 1-2 Schematic 1-2 Schematic 1-3 Schematic 1-3 Schematic 1-4 Schematic, socket 1-4 Schematic, socket, voltage 1-5 Schematic, socket, voltage 1-6 Schematic, socket, voltage 1-7 Schematic, socket, voltage 1-8

ACME APPARATUS CO. Schematic 1-1 Schematic 1-1

ACME ELECTRIC & MFG. CO. AC -7 Schematic, socket 1-1 SG -88 Schematic, socket 1-1

ALL-AMERICAN MOHAWK CORP. Navajo VA 115-1926 All -Electric 115r1926 Battery Mohawk 226 Mohawk 226, 12 Contact A-10 Eliminator 44 Forte, 1926 60, 61, 62, 85, 66

,6, 61, 62, 65, 66 Power Pack

70, 73, 75 80, 83, 84, 85, 86, 88 90, 25 -cycle 90, 60 -cycle 90, 25- & 60 -cycle Power

Pack 96, 60 -cycle Lyric D H J J K P C-6, Studio S-6 S-6 S-7 S-7 S-8 S-8 DC

Schematic, chassis 1-1 Schematic, socket 1-1 Schematic 1-2 Schematic, socket 1-2 Schematic, socket, cable 1-3 Schematic 1-4 Schematic 1-4 Schematic, socket 1-5 Schematic, socket 1-5 Schematic, socket, voltage 1-6

Schematic, wiring, plug 1-7 Schematic, socket, voltage, data i-8 Schematic, socket, voltage 1-9 Schematic, voltage 1-10 Schematic, voltage, socket 1-11

Chassis, plug connections 1-13 Schematic, socket 1-12 Schematic, socket, voltage 1-14 Schematic, socket, voltage 1-15 Schematic, socket, data 1-16 Voltage, values 1-17 Schematic, socket 1-18 Schematic, socket, data 1-19 Schematic, socket, data 1-20 Schematic, socket, data 1-21 Voltage, data 1-22 Schematic, socket, data 1-23 Voltage, data 1-24 Schematic, socket, data 1-25 Voltage, data 1-26 Schematic 1-27

AMERICAN TRANSFORMER CO. 25-A Power Amplifier (A

Unit) 25-A Power Amplifier (PA

Unit) 25-A Power Amplifier (P

Unit) 210 Power Amplifier Amertran Power Pack 250 Amertran Power Ampli-

fier

AMRAD S-522 3500-1 Tuner *3475, Am-

plifier *2634 3500-2 Tuner * 3730, Am-

plifier *2634 171 ABC Power Pack AC -7, AC -7C DC -7, DC -7C AC -5 and Power Pack 80, 82, 83 Inductrol 84 S-733 3590 AC -6, AC -6C DC -6, DC -6C 7100 7191 70 Bel -Canto 81 Bel -Canto 81

ARGUS

Schematic 1-1

Schematic 1-1

Schematic 1-1 Schematic 1-1 Schematic 1-1

Schematic 1-2

CORPORATION Schematic 1-1

Schematic 1-1

Schematic 1-1 Schematic 1-2 Schematic, socket 1-3 Schematic, socket 1-3 Schematic 1-4 Schematic, socket 1-4 Schematic 1-4 Schematic, socket 1-5 Schematic, socket 1-5 Schematic 1-5 Schematic, socket 1-6 Schematic, socket 1-6 Schematic 1-7 Schematic 1-7 Schematic, socket, voltage 1-8 Schematic, socket, voltage 1-9 Condenser data 1-10

RADIO CORP. B-125 Schematic B -I95 Schematic B-195 Chassis

ATWATER 10 10-B 12 19 *4880 20 *4640 20 *7570 20 *7960 21 *7780 30, 35, 48 32 36 Early, late Power Pack 37 Early, late

1-1 1-1 1-2

KENT MFG. CO. Schematic, socket 1-1 Schematic, socket 1-1 Schematic, socket 1-1 Schematic, socket 1-2 Schematic 1-2 Schematic, socket 1-2 Schematic, socket 1-3 Schematic, socket 1-3 Schematic, socket 1-4 Schematic, socket 1-4 Schematic 1-6 Data 1-5

MODEL 37, 37-F, 37-C 37 Power Pack, Early, late 38 40, 42, 52, 56, 57 40, 42, 52 Power Pack 40, 42, 44, 52 Power Pack 40, 45, 2nd Type Power

Pack 41 DC 41 Power Pack, 3 Types 43 43 Power Pack 44, 45 50 55, 55-C Early 55, 55-C Early 55, 55-C Late 55-F, 55 -FC Early 55-F, 55 -FC Early 55-F, 55 -FC Late 55-F, 55 -FC Late 60, 60-C 1st & 2nd Types 60, 60-C Early 60, 60-C Late 60, 61-C DC, Early 61, 61-C Late 68 66 66 67, 67-C, Early and late,

Battery 67, 67-C 70, 74, 76, Chassis D 70, 74, 76, Chassis D-1 70, 74, 76, Chassis D-2 70, 74, 76, Chassis D-2 70, 74, 76, Chassis F 70, 74, 76, Chassis F 70, 74, 76, Chassis L-1 70, 74, 76, Chassis L-1 70, 74, 76, Chassis L-2 70, 74, 76, Chassis L-2 76, Chassis P 70, 74, 76, Chassis L-2

and P 70, 76, Chassis Q 70, 76, Chassis Q 72, Chassis H-1 72, Chassis H-1 72, Chassis H-1, Below

serial *5,855,201 72, Chassis H-2 72, Chassis H-2 72, Chassis H-2, Above

serial *5,855,201 80, 80-F, 83, 83-F 80, 80-F, 83, 83-F 81, 81-B, 81-C 80, 81, 82, 83, 84, 85, 86,

87, 89 82-D 82-D 82, 82-F 82, 82-F 84-D 84-D 85, 85-F 85, 85-F

5 -AC 5 -DC 6 -AC 5 6

ATCHISON

PAGE Schematic, socket 1-7 Schematic, data 1-8 Schematic, socket 1-7 Schematic, socket, voltage 1-9 Schematic 1-9 Chassis layout 1-10

Chassis layout 1-10 Schematic, socket 1-11 Schematic, voltage 1-12 Schematic, chassis 1-13 Schematic, wiring 1-14 Schematic, data 1-15 Schematic, socket, data 1-16 Schematic, voltage, data 1-17 Chassis wiring 1-18 Schematic, chassis 1-19 Schematic, voltage, data 1-20 Chassis wiring 1-21 Schematic, chassis 1-22 Chassis wiring 1-23 Voltage, service data 1-24 Schematic, data 1-25 Schematic, chassis 1-27 Schematic, data 1-26 Schematic, socket, voltage 1-28 Chassis wiring 1-29 Schematic, data 1-30 Voltage, socket 1-32

Schematics 1-31 Voltage, socket 1-32 Schematic, data 1-33 Chassis wiring 1-34 Schematic, voltage 1-35 Chassis wiring 1-36 Chassis wiring 1-37 Schematic, data 1-38 Chassis wiring 1-39 Schematic, data 1-40 Schematic, data 1-41 Chassis wiring 1-42 Schematic, data 1-43

Voltage, notes 1-44 Voltage, socket, notes 1-45 Schematic, chassis 1-46 Schematic 1-47 Voltage, chassis 1-48

Chassis layout, data 1-49 Chassis, voltage 1-50 Schematic 1-51

Chassis layout, data 1-52 Schematic 1-53 Chassis, socket, voltage, data 1-54 Schematic 1-55

Voltage Data 1-56 Schematic 1-57 Chassis, socket, data 1-58 Schematic 1-59 Chassis, socket, data 1-60 Schematic 1-61 Chassis, data 1-62 Schematic 1-63 Chassis, socket, data 1-64

RADIO MFG. CO. Schematic 1-1 Schematic 1-1 Schematic, power unit chassis 1-2 Chassis layout 1-3 Chassis layout 1-3

AUDIOLA RADIO CO. 527 627 6-T (1927) 8-T (1927) 8430 30-B, 7330 31 Series 31 Super Audiola, Jr. 6 Tube Pentode 31 8 Tube Super Pentode 31 9 Tube Super Pentode 31 889

Schematic 1-1 Schematic 1-1 Schematic 1-2 Schematic 1-2 Schematic, socket, voltage 1-3 Schematic, socket 1-4

' Schematic, voltage 1-5 Schematic, voltage 1-6 Schematic, socket 1-7 Schematic, socket 1-7 Schematic, socket 1-8 Schematic 1-9 Schematic 1-10

AUTOMATIC RADIO MFG: CO. Tom Thumb Screen -Grid

4, Battery Schematic 1-1

NATHANIEL BALD/VIN & CO. 80 Schematic, Misc 1-1

B-7, B-9 A-3, A-5, A-7 C

F

BALKEIT RADIO Schematic, Schematic, Schematic,

list

BALKITE Specifications H, J, K, N Chargers B-180, Form A AB -6-180 Form A B-180 Form B

Schematic, list

CO. chassis, data 1-1 voltage, chassis 1-2 socket, voltage, parte

1-3 socket, voltage, parta

1-4

PRODUCTS CO. Voltages, charging rates, etc 1-1 Schematic 1-2 Schematic, wiring 1-3 Schematic, wiring 1-4 Schematic, wiring 1-4


MODEL PAGE

Trirdyn 51 5-38

10 Schematic 1-1 Buddy, Chum 12 Schematic, socket, voltage 1-2 AC -7, AC -7C

20, 21, 22 30S, 31S, 33S, 34S 40S, 41S, 42S, 828 41, 41A, 42 48 53, 54, 57 55 56 55, 56 58

60 Goldcrest Schematic 1-1 60S, 61S, 62S, 63S 70 Clearodyne Schematic 1-1 78 80 (Improved) Schematic 1-2 100 Series Schematic 1-2 110 Schematic 1-3 112 Schematic 1-3

CAPEHART CORPORATION 400, 401, 402 400 Series, PZ Amplifier 400 Series, RF 400, 401, 402

BALKITE PRODUCTS CO. (Cont'd.) MODEL PAGE AB -6-135 Form A AB -6 Form B BY A-6 B -X B-135 Form A B -W B -H B Form D B -W Form D K -X

Schematic, wiring 1-5 Schematic, wiring 1-6 Schematic, wiring 1-7 Schematic 1-8 Schematic, wiring 1-8 Schematic, wiring 1-9 Schematic 1-9 Schematic 1-10 Schematic 1-10 Schematic 1-10 Schematic, wiring 1-11

BRANDES PRODUCTS CORP. B-10 Schematic 1-1 B-10 Voltage, socket, data 1-2 B-15, B-16 Schematic 1-3 B-15, B-16 Voltage, socket, data 1-4

BREMER-TULLY MFG. CO. 7-70 Schematic, chassis wiring 1-1 7-70 Power Converter Schematic, socket, voltage 1-2 8-20, 8-21 Schematic, socket, voltage 1-3 8 Counterphase Schematic 1-3 6-40, 6-41 Schematic, socket, voltage 1-4 6-40 Power Converter Schematic 1-5 81-A Schematic, socket 1-5 81, 82 Schematic, socket, voltage 1-6 S-81, S-82 Schematic, socket 1-7

BROWNING -DRAKE CORP. 5 Tube AC Kit Schematic 1-1 34, 36, 38 Schematic 1-1 69 Schematic 1-2 70, 71 Schematic 1-3

BRUNSWICK RADIO CORP. Radiola Super, UV Cata-

comb Schematic 1-1 Superheterodyne Panel wiring 1-2 PR -6, 6 Tube 1-B Panel Schematic 1-3 PR -6, 6 Tube 1-C Panel Schematic 1-4 6 Tube Cordova Schematic 1-5 8 Tube Cordova Schematic 1-6 8 Tube, 2-D Battery Schematic 1-7 RPA-5A, Panatrope Con-

nections Schematic, wiring 1-8 P-11, P-13 Cabinet wiring 1-9 3-KR8, RF Schematic, voltage 1-10 3-KR8, SPU Chassis wiring, voltage 1-11 5 KR, 5 KRO, 5 KR6, 2

KRO, RF Schematic, socket, voltage 1-12 5 KR, 5 KRO, 2 KRO, 3

KRO, SPU Schematic 1-13 3 KRO, 3 KR6, RF Schematic 1-14 5 NO, RF Schematic, socket, voltage 1-15 5 NO, SPU Chassis wiring 1-16 5 NC8, RF Schematic voltage 1-17 3 NC8, 5 NC8, AF Chassis wiring 1-18 3 NC8, 5 NC8, AF Schematic 1-19 5 NO, 5 NC8, 3 NC8 Trimmer locations 1-20 PR -17-8, 2 types (BRP5) Wiring diagrams 1-21 B-17 for PR -17-8 Schematic 1-22 SPU 18 for PR -17-8 Schematic 1-22 SPU 18 for PR -17-8 Chassis wiring 1-23 P-14 Schematic, cabinet wiring 1-24 RPA-3A Chassis wiring 1-25 RPA-4A Schematic 1-25 RPA-6 Chassis wiring, socket 1-26 PR -6 Schematic 1-26 R-1 Schematic, data 1-27 R-1 Chassis wiring 1-28 S-14, S-21, S-31 RF Schematic 1-29 S-14, S-21, 60 -cycle AF and

SPU Schematic 1-29 S-14, S-21, S-31, S-81 RF Chassis wiring 1-30 S-14, S-21, S-81, S-82 25 -

cycle AF Chassis wiring 1-31 S-14, S-21, S-81, S-82, AC

25 -cycle AF Schematic 1-32 S-14, S-21, S-81, S-82 60 -

cycle AF Chassis wiring 1-33 15- 22 AC also 32, 42 AC Schematic 1-34 S-31 80 -cycle AF Chassis wiring 1-35

BUCKINGHAM RADIO CORPORATION 80, 80-B Schematic, socket, voltage, Misc....1-2

BUSH & LANE PIANO CO.

Schematic Chassis wiring Chassie wiring Complete wiring diagram

1-I 1-2 1-3 1-4

CLEARTONE RADIO CORPORATION

COLONIAL RADIO CORP. 16-6 Schematic 1-1 16-5 Schematic 1-2 17-5 Schematic 1-2 20 Schematic 1-3 21 Schematic 1-3 25 Schematic, socket 1-4 26 Schematic, socket, voltage 1-5

28 AC, Serial $ 90,001 Schematic, socket 1-6 28 DC, Serial *85,001 Schematic, socket 1-7 31 DC Schematic, socket, voltage 1-8 31 DC Chassis wiring, data 1-9 31 AC Voltage 1-9 31 AC Schematic, socket 1-10 32 DC, Issue A Chassis wiring 1-11 32 DC, Issue A Schematic, socket, voltage 1-12 32 AC, Issue J Chassis wiring 1-13 32 AC, Issue J Schematic, socket, voltage 1-14 33, 34, 35 AC Schematic 1-15 33 DC, 34 DC Schematic, socket, voltage 1-16 33, 34, 35 AC Remote

Control Schematic, wiring, cable 1-17 39, 125 Schematic 1-18 41, 42 Schematic 1-18 36, 114 Schematic 1-19 36-P Schematic 1-19

COLUMBIA PHONOGRAPH CO. C-1, C-3 Schematic, socket 1-1 C-2, C-4 Schematic, socket 1-2 C-5 (205) Schematic, socket, voltage 1-3 C-5 (310) Schematic, socket 1-3 C-6, C-7 Schematic, socket 1-4 900, 901 Schematic, socket 1-4 902 Schematic, socket 1-5 920, 990 Schematic 1-6 930 Schematic, socket 1-6 930-300 Schematic, socket 1-7 931 Schematic, socket 1-7 950 Schematic, socket 1-8 961 Schematic, socket 1-9 980 Schematic, socket 1-10

COLUMBIA RADIO CORPORATION SG -8 Chassis wiring, voltage 1-1 SG -8 Schematic 1-2

CONTINENTAL RADIO CORPORATION Slagle 9 with 71-A Schematic, socket, voltage 1-1 Slagle 10. A and B with

'71-A. Power Pack Schematic, socket 1-2 Slagle 29-C with '71-A

Power Pack Schematic, socket 1-3 Slagle 29-A and 29-B with

'50 Power Pack Schematic, socket 1-4 Slagle 29-C and 29-D with

'50 Power Pack Schematic, socket 1-5 Star Raider, R-20, R-30,

R-40 Schematic 1-6

CROSLEY RADIO CORP. XJ, XL Schematic, socket, chassis wiring...1-1 3B, 3C Schematic, chassis wiring 1-1 4-29 Schematic, socket 1-2 RFL 60, 75 Schematic, socket 1-2 RFL 90 Schematic, socket 1-3 6-60, 6-85 Schematic, socket 1-3 401 Bandbox, Jr. Schematic, socket, chassis 1-4 401-A Bandbox, Jr. Schematic, socket 1-4 601 Bandbox Schematic, socket, voltage,

chassis 1-5 AC Power Unit for AC -7 Schematic 1-5 602 AC, Power Converter for

Models 104, 105, 106 Schematic, data 1-6 602 AC Bandbox Schematic, socket 1-7 602 Power Pack Schematic 1-7 104, 105, 106 Power Con-

verter Schematic 1-7 104-R, 105-R Power Con-

verter Schematic 1-7 608 Gembox Schematic, socket, voltage,

chassis 1-8 609 Gemcheat, 610 Gembox Schematic, socket, voltage,

chassis 1-9 704 Jewelbox Schematic, socket 1-10 704-A Jewelbox Voltage 1-10 704-A Jewelbox Schematic, socket, chassis 1-11 704-B Schematic, socket, voltage,

chassis 1-12 705 Schematic, socket, chassis, data 1-13 708 Schematic, socket, voltage,

chassis 1-14 804 Schematic, socket, voltage,

chassis 1-15 Schematic, socket 1-16 Schematic, socket 1-16 Schematic, socket 1-16 Schematic, socket, voltage, data 1-17 Schematic, socket 1-18 Schematic, socket, voltage, data 1-19 Schematic, socket, voltage, data 1-20 Schematic, socket, voltage, data 1-21 Schematic, socket, voltage 1-22 Schematic, socket, voltage, data 1-23 Schematic, socket, voltage, data 1-24 Schematic, socket, voltage 1-25 Schematic, socket, voltage 1-25 Parte lists 1-26 Schematic, socket, parts list 1-27 Schematic, socket, voltage 1-28 Schematic, socket, voltage,

chassis 1-29 77-1 Schematic, socket, chassis 1-30 77A, 77B, 77L Schematic, socket, voltage, data 1-31 84C, 84D Schematic, socket, voltage, data. 1-32 90, Roamio Schematic, socket, voltage,

chassis 1-33 120 Schematic, socket, voltage,

changes 1-34

DE FOREST RADIO CORPORATION F-5 Schematic, Misc D-10 Schematic, Misc

1-3 1-3


MODEL CS -5 D-17

DE FOREST (Cont'd.) PAGE

Schematic, Misc 1-3 Schematic, Misc 1-3

DELCO RADIO CORP. 3002 Schematic, socket, chassis wiring,

voltage 1-1 3002 Chassis layout, control wiring,

data 1-2

EARL RADIO CORP. 21 -DC, 22 -DC Schematic, socket 1-1 121 Schematic 1-1 21, 22 AC Schematic, socket, voltage 1-2 24 -DC, 31 -DC, 32 -DC Schematic, socket 1-3 33-S AC Schematic 1-3 31, 32 AC Schematic, socket, voltage 1-4 41, 42 AC Schematic, socket, voltage 1-5

ECHOPHONE RADIO MFG. CO. S-3 Schematic 1-1 S-3 Revised Schematic 1-1 S-3 Voltage, data 1-2 S-3 Chassis views 1-3 S-4 Schematic 1-4 S-4 Voltage, data 1-5 S-4 Chassis views 1-6 S-5, Dynatron Schematic, socket, data 1-7 S-5 Revised Schematic, socket, data 1-8 S-5 Voltage, chassis layout 1-9

THOMAS C-1, Chassis.SC C-1, Chassis SC, Power Unit Rl, R2, C2, Chassis, Jr. and

Je. R1; 112, C2, Chassis, Jr. and

Je. Rl, R2, C2 60 cycles R4, R5, C4 (Umt Type 71I) R4, R5, C4 R4, 115, C4 R4, R5, C4 (Power Unit

Type 8P) R6, R7 Splitdorf Abbey, Jr. Splitdorf Abbey Battery Splitdorf R-100 Splitdorf E-175 Splitdorf R-200 Splitdorf RV -695

Loftin -White '45

ELECTRICAL S-61 R-1 R-2, RF Unit A-2, AF Unit 224 AC 224 AC 81, 82 (245) 335

F

65

A. EDISON, INC. Schematic, socket, voltage 1-1 Chassis wiring 1-2

Chassis wiring 1-3

Schematic, socket, voltage 1-4 Schematic, chassis wiring 1-5 Chassis wiring 1-6 Schematic, socket, voltage 1-7 Parts list 1-8

Chassis wiring 1-9 Schematic, socket, voltage 1-10 Schematic, socket 1-11 Schematic, socket 1-11 Schematic, socket 1-12 Schematic 1-13 Schematic, socket 1-12 Schematic, socket 1-12

ELECTRAD, INC. Schematic 1-1

RESEARCH LABORATORIES, INC. Schematic, socket 1-1 Schematic, socket 1-1 Schematic, socket 1-2 Schematic, socket 1-2 Schematic, socket 1-3 Chassis, voltage 1-4 Schematic, socket 1-5 Schematic, socket 1-6

EMERSON RADIO AND

EXPERIMENTERS' Navy C-10

FADA RADIO 460-A, R-60 Unit 475-A, SF 45-75 R -80-A Unit, 480-A, SF

50-80A 480-B, SF 50-80B 472UA, 475UA, 472CA,

475CA 262UA, 265UA, 262CA,

265CA C Electric Unit ABC SPU, Types 66-Q and

62-R ABC SPU, 86-V, 82-W 10, 11, 30, 31, 10Z, 11Z, 30Z,

31Z 16, 17, 32, 16Z, 32Z 18 DC 20, 20Z 22 Battery 25, 25Z 25, 25Z (M-250 and M -250Z

units) 35-B 35, 35Z 40 42, 44, 46, 41, 47 KF (43), KG (761, 762, 764,

766) 45, 45Z (KU) 48, 49 (KW) 45, 48, 49 50, 70, 71, 72, 50Z, 70Z E-180, E -180Z E-420, E -420Z 192-A (192S, 192BS units) 160 Neutrodyne Reflex 75, 77

B Eliminator

PHONOGRAPH CORPORATION Schematic, socket, voltage, parts

list 1-1 Schematic, condenser data 1-2

INFORMATION SERVICE Schematic, Misc 1-4

& ELECTRIC CORP. Schematic, socket 1-1 Schematic, socket, data 1-2

Schematic, socket 1-3 Schematic, socket 1-4

Schematic, socket, parts list 1-5

Schematic, socket, data 1-6 Schematic, chassis wiring 1-7

Schematic 1-8 Schematic 1-9

Schematic, socket, parts list 1-10 Schematic, socket, voltage 1-11 Schematic, socket 1-12 Schematic, socket, voltage 1-13 Schematic, socket 1-14 Schematic, socket, voltage, data 1-15

Schematic, socket, voltage 1-16 Schematic, voltage, data 1-17 Schematic, socket, voltage, data 1-18 Schematic, socket, voltage, data 1-19 Schematic, socket. 1-20

Schematic, data 1-21 Schematic, socket, data 1-22 Schematic, socket, data 1-23 Service notes 1-24 Schematic, socket, voltage 1-25 Schematic, chassis wiring, data 1-28 Schematic, chassis wiring, data 1-27 Schematic, socket 1-28 Schematic 1-28 Schematic, socket, voltage, data 1-29

FARRAND MFG. CO. Schematic, Misc 1-5

MODEL A-10, 59, 102 A-10 B B C C D, Code 68-070 D, Battery D, Code 79-070 D (60 cycles) E, Code 68-060 E DC F, Code 79-080 F, Code 79-080 F-10, DC, F-11 DC F, (25 cycles) G, (25 cycles) H, Code 71-030 H Receiver H, Power Unit K M

FEDERAL RADIO CORP. PAGE

Schematic, socket 1-1 Chassis wiring 1-2 Schematic 1-3 Chassis wiring 1-4 Schematic, socket 1-5 Chassis wiring 1-6 Schematic, socket 1-7 Chassis wiring 1-8 Schematic, socket, data 1-9 Chassis wiring 1-10 Schematic, socket 1-11 Schematic, socket 1-12 Chassis wiring 1-13 Schematic, socket 1-14 Schematic, socket, data 1-15 Schematic, socket 1-16 Schematic, socket, data 1-17 Schematic, socket, voltage 1-18 Chassis wiring 1-19 Chassis wiring 1-20 Schematic, socket 1-21 Schematic, socket, voltage 1-22

FEDERATED PURCHASER Cathedral Tone Schematic 1-1

FENWAY Superheterodyne, early and

late Schematic, Misc 1-5

FERRANTI, INC. 250-B-3 Schematic, Misc 1-6 250-C Schematic, Misc 1-6

FREED TELEVISION & RADIO CORP. NR -5 NR -6 NR -7 NR -8, NR -8A NR -9, NR -9A NR -10 NR -11 NR -11 Power Pack NR -12 ABC Power Pack FE -15 FE -18 NR -20 FE -30, 30N 40N, 48N 50 NR -53 NR -55 DC NR -55, NR -56 AC NR -57 NR -457 Power Unit NR -60 DC NR -60 AC NR -460 AC Power Unit NR -66, 66-A NR -70 AC NR -470 AC NR -77 800 NR -78 DC, NR -79 DC NR -78 AC, NR -79 AC NR -80 DC NR -80 AC NR -85 AC NR -90-S NR -95 AC

Schematic Schematic Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic Schematic Schematic Schematic Schematic Schematic Schematic Schematic Schematic Schematic Schematic Schematic, socket Schematic, socket, voltage Schematic, socket Schematic Schematic Schematic, socket Schematic Schematic, socket Schematic, socket Schematic Schematic, socket Schematic Schematic, socket, voltage Schematic, socket, voltage Schematic, socket, voltage Schematic, socket, voltage Schematic, socket, voltage Schematic Schematic, socket, voltage

1-1 1-1 1-2 1-2 1-3 1-3 1-4 1-5 1-4 1-5 1-6 1-6 1-6 1-7 1-7 1-8 1-22 1-9 1-10 1-11 1-11 1-12 1-13 1-13 1-14 1-15 1-15 1-16 1-16 1-17 1-18 1-19 1-20 1-21 1-22 1-23

JESSE FRENCH & SONS PIANO CO. 8 Tube AC Schematic, socket, voltage, data 1-1 5-093 Schematic, socket, voltage 1-2

CHARLES FRESHMAN CO., INC. Masterpiece Equaphase G G with G -60-S Power Unit.

2 types H ABC Power Unit K L M N 2N with 2N -60-S Power Unit Q-15, Q-16 3-Q-15, 3-Q-16 QD-16-S

Motorola Auto Set Motorola Auto Set

Schematic 1-1 Schematic 1-1 Schematic, socket, voltage 1-2

Schematic, socket, voltage 1-3 Schematic, socket, voltage 1-4 Schematic 1-4 Schematic, socket, voltage 1-5 Schematic, socket 1-7 Schematic, socket, voltage 1-6 Schematic, socket, voltagd 1-7 Schematic 1-8 Schematic, socket 1-9 Schematic, socket, voltage 1-10 Schematic, socket, voltage 1-11

GALVIN MFG. CO. Schematic, Misc 1-7 Special notes for Buick and

Ford "A," Misc 1-8

DAVID GRIMES, INC. New Yorker, 110 -volt DC Schematic, Misc 1-9 Inverse Duplex, type 4 -DL Schematic, Misc 1-9 Inverse Duplex, 1927 Schematic, Misc 1-9

T-12 S-22 S-42 K-50, K-51 S -42-B T-41 H-31 H-51 H-71

GENERAL ELECTRIC CO. See RCA Victor R-5 See RCA Victor R-7 See RCA Victor R-9 See RCA Victor R-28 See RCA Victor R-43 See RCA Victor 48 See RCA Victor R-80 See RCA Victor R-82 See RCA Victor R-86


GENERAL M OTORS RADIO CORP. MODEL OEM -7 (4 tube) OEM -7 Super -Sel. OEM -11 (3 tube) 5044 (5 tube) 527 (5 tube) Day -Fan 5 -AC Day -Fan 5 -AC SPU Day -Fan 6 Day -Fan 6 Jr. Day -Fan 6-61 (5050) Day -Fan 5050, Battery Day -Fan 5050-7 Day -Fan 5051 (MG Set) Day -Fan 5052 (110 -volt DC) Day -Fan 5053 Day -Fan 5057 Day -Fan 5057 SPU Day -Fan 5065 AC Day -Fan 5524, 5525 SPU Day -Fan 5066 Day -Fan 5060 (32 -volt DC) B and C SPU Day -Fan 25, 26, 27, 28, 43,

48 Day -Fan 35 Day -Fan 5077 Day -Fan 5080 Day -Fan A-5003, A-5010 Day -Fan 5091 120, 130, 140. Below serial

í129100A -.1700B 120, 130, 140. Between

serial *29100A -62100A, 1700B -1964B

120, 130, 140. Above serial í162100A -1964B

170-E 170-E 110, 180, 190 Little General

210 Amplifier 250 Amplifier 390 Eliminator 361-B 360 Oscillator 360-A Oscillator 320 Oscillator 403-C

PAGE Schematic, socket 1-1 Schematic, socket 1-1 Schematic, socket 1-1 Schematic, socket 1-2 Schematic, socket 1-2 Schematic 1-3 Schematic, data 1-3 Schematic, socket 1-3 Schematic, socket 1-4 Schematic, socket, data 1-4 Schematic 1-9 Schematic, socket 1-9 Schematic, data, socket 1-5 Schematic, socket 1-8 Schematic, socket 1-6 Schematic, data 1-6 Schematic 1-6 Schematic, socket, data 1-7 Schematic 1-7 Schematic, data 1-7 Schematic, socket 1-8 Schematic 1-9

Schematic, socket, voltage Schematic, socket Schematic Schematic, socket, voltage Schematic, socket Schematic, socket, voltage

Schematic, socket, voltage

Schematic, socket, voltage 1-15

Schematic, socket, voltage 1-16 Schematic, socket, voltage 1-17 Chassis wiring, data 1-18 Schematic, socket, data 1-19

GENERAL RADIO CO. Schematic 1-1 Schematic 1-1 Schematic 1-1 Schematic diagrams 1-2 Schematic 1-3 Schematic 1-3 Schematic 1-3 Schematic 1-2

GILFILLAN BROS. 33 Schematic, socket 1-1 60 Schematic, socket 1-2 66 Schematic, socket 1-2 100 Schematic, socket 1-1

GB -4 GB -8 311 500 550 GB -678 340 600 GB -700 GB -770 GB -900

GRAYBAR ELECTRIC CO. See RCA Victor R-5 See RCA Victor R-7 See RCA Victor 33 See RCA Victor 44 See RCA Victor 46 See RCA Victor 48 See RCA Victor 62 See RCA Victor 66 See RCA Victor R-80 See RCA Victor R-82 See RCA Victor R-86

A. H. RORB BORD BORE RORF BORG RORH RORJ RORK RORL BORN BORO RORQ CR -1 CR -2 CR -3 CR -4 CR -5 CR -6 CR -7 CR -8 Broadcast Receiver CR -9 CR -12 CR -18 (Special) CR -13 CR -14 CR -18 (1 AF. Stage) Synchrophase 5, 671 Power

Unit Synchrophase 1925 Synchrophase MU -1 Synchrophase MU -1 Synchrophase MU -2 412 Pushpull Amplifier 428 DeLuxe Console Synchrophase AC -6 Synchrophase AC -6 Power

Unit Synchrophase 7 Battery 671-B Power Unit Synchrophase 7 AC Synchrophase S1C-4, Early

GREBE & CO. Schematic 1-1 Schematic 1-1 Schematic 1-1 Schematic 1-1 Schematic 1-2 Schematic 1-2 Schematic 1-2 Schematic 1-2 Schematic 1-2 Schematic 1-3 Schematic 1-3 Schematic 1-3 Schematic 1-4 Schematic 1-4 Schematic 1-4 Schematic 1-4 Schematic 1-5 Schematic 1-5 Schematic 1-5 Schematic 1-5 Schematic 1-6 Schematic, socket 1-7 Schematic, socket 1-6 Schematic, socket 1-7 Schematic 1-8 Schematic, socket 1-8 Schematic 1-9

Schematic, socket, voltage 1-10 Schematic 1-11 Schematic 1-11 Socket layout 1-12 Schematic, socket, voltage 1-12 Schematic, chassis wiring 1-13 Schematic 1-14 Schematic, socket, voltage 1-15

Chassis wiring (2 types) Schematic, socket Schematic, socket Schematic, socket, voltage Schematic, socket, voltage

MODEL AH -1 Schematic, socket, voltage HS -4, 1 Pentode Schematic, socket, voltage HS -4 with '45 Pushpull Schematic, socket, voltage HS -5 Schematic, socket, voltage

GRIGSBY-GRUNOW CO. 70 7-P-6, 7-P-3 (Two types) 7-P-6, 7-P-3 (Old wiring) 7-P-6, 7-P-3 70-B 7 -BP -6, 7 -BP -3 7 -BP -6, 7 -BP -3 180 8-P-6, 8-P-3 70-B, 180 90 100 90-B 100-B 130-A 230-A 20, 21,

1-10 20 1-10 30, 31 1-11 30 1-11 50, 52 1-12 50 1-13 60, 61, 62

60, 61, 62 (160, 163) 1-14 60, 61

160, 163 9-P-3, 9-P-6

22, 23

60, 63 60, 63 160, 161 (60 cycles) 160, 161 (25 cycles) 200, 291, 292, 295, 9950 200, 291, 292, 295, 9950

(2 types)

PAGE 1-20 1-21 1-22 1-23

Schematic, socket, voltage 1-1 Schematic 1-2 Chassis wiring 1-3 Chassis wiring 1-4 Schematic, socket, voltage 1-5 Schematic 1-6 Chassis wiring 1-7 Schematic, socket, voltage 1-8 Schematic, chassis wiring 1-9 Data 1-10 Schematic 1-11 Schematic 1-11 Schematic, socket, voltage 1-12 Schematic 1-12 Schematic, socket, voltage 1-13 Schematic, socket 1-13 Schematic, socket, voltage, data 1-14 Chassis views 1-15 Schematic, socket 1-16 Voltage, data 1-17 Schematic, socket, voltage 1-18 Chassis views 1-19 Schematic, socket 1-20 Voltage, data 1-21 Chassis views 1-22 Schematic, socket 1-23 Schematic, socket, voltage, data 1-24

GULBRANSEN CO. Schematic, socket, voltage 1-1 Chassis wiring, data 1-2 Schematic, data 1-3 Schematic, voltage 1-4 Voltage, socket, data 1-5

Schematic, socket 1-6

HAMMARLUND-ROBERTS, INC. H -R 5 Tube Schematic 1-1 H -R "Hi -Q" Schematic 1-1 H -R "Hi -Q" 6 Schematic, chassis wiring, data 1-2 H -R "Hi -Q" 29 Jr. (3 types) Schematic, socket, data 1-3 H -R "Hi -Q" 29 Master

H R (3 ty Q" 30 (30-R, Schematic, socket, data 1-4

Battery) Schematic 1-5 H -R "Hi -Q" 30 AC Schematic 1-5 H -R "Hi -Q" 30 DC Schematic, socket, voltage 1-6 H -R "Hi -Q" 31 Schematic 1-6

HAMMARLUND MFG. CO. Hawk Schematic 1-1 DeLuxe Schematic 1-1 Z4 Commander Schematic 1-1 Trans -Oceanic Two Schematic 1-1 AC & DC Converters Schematic 1-1

H -Y 7 H -Y 7 Battery H -Y 7-B

HATRY & YOUNG ' Schematic, parts list Misc. Page 1-10

Schematic Misc. Page 1-10 Schematic Misc. Page 1-10

HIGH FREQUENCY LABORATORIES A -C Special 9-in-Lme Mastertone 1929 Isotone 10

Schematic 1-1 Schematic 1-1 Schematic - 1-2 Schematic 1-2

HOWARD RADIO CO. A-5 A-6 SN -7 K Green Diamond 8

(Magnetic Spkr.) Green Diamond 8

(Dyn. Spkr. '71) Green Diamond 8

(Dyn. Spkr. '45) SG "A" RF Chassis SG "A" AF Chassis SG "C" RF Chassis SG "C" AF Chassis 395, 445, 470, 495 (135 AC

Chassis)

J. 3B Mixing Panel 3C Mixing Panel A (2 types) Pushpull Amplifier Monitor Amplifier Monitor Amplifier

Schematic, socket 1-1 Schematic, socket 1-1 Schematic, socket 1-2 Schematic 1-2

Schematic, socket, voltage, data 1-3

Schematic, socket, voltage, data 1-4

Schematic, socket, voltage, data 1-5 Schematic 1-6 Schematic, voltage, socket 1-7 Schematic 1-6 Schematic 1-7


E. JENKINS & S. E. ADAIR Schematic 1-1 Schematic 1-1 Schematic 1-2 Schematic 1-2 Schematic 1-2 Schematic 1-2

KELLOGG SWITCHBOARD & SUPPLY CO. 6 Tube Battery 7 Tube Cascade Wave Master RFL 701 AC -7 Tube Chassis B 523, 524, 525, 526, 527,

528 RF 1-16 523, 526 Power Unit 1-17 524, 525,. 527, 528 Power 1-17 Unit 1-18 533, 534, 535, 536 RF 1-19 Chassis

Schematic 1-1 Schematic 1-1 Schematic 1-1 Schematic....., 1-2 Schematic, voltage 1-2 Schematic, voltage 1-2

Schematic 1-3 Schematic; socket, voltage 1-4

Schematic, voltage, socket 1-5



COLIN B. KENNEDY CORP. MODEL PAGE

WILLIAM J. MURDOCK CO. MODEL PAGE

15, 16 (Type 430-43) Schematic 1-1 Neutrodyne, 3 Control Schematic, Misc 1-15 220 Schematic 1-1 7 -Tube, Single Control Schematic, socket, Misc 1-15 281 Schematic 1-1 175 to 25,000 Meters Schematic 1-1 5 Schematic 6 Type 421 Schematic

1-2 1-2 NATIONAL CARBON CO.

6 Type 420 Schematic 1-2 1, 2, 3 Schematic, socket 1-1 7 -Cornet DC Schematic, socket 1-3 20, 21 Schematic, socket 1-1 20, Type 440 Schematic 1-3 31, 32, 33, 34 Schematic, socket, voltage, parts 30, Type 435 Schematic, voltage 1-3 list 1-2 10 Schematic, socket, voltage 1-4 42, 43, 44 Schematic, socket, voltage, parts 20 Schematic, socket, voltage 1-4 list 1-3 Royal Schematic 1-5 52, 53, 54 Schematic, socket, voltage, parts Royal 60 Schematic, socket 1-5 list 1-4 26 Schematic, chassis, notes 1-6 30, 32 Schematic, chassis 1-7 34 Schematic, voltage 34 Chassis wiring

1-8 1-9 THE NATIONAL COMPANY

34 Changes, data 1-10 S -G 5 Schematic 1-1 Coronet 42 Schematic, chassis, voltage 1-11 S -G SW Tuner Schematic 1-1 Royal 80 Schematic 1-12 S -G SW Tuner with '71 Schematic 1-1 826-B Schematic 1-12 Auto Box Connections Wiring diagram 1-1

MB -29 Schematic 1-2 MB -30 Schematic, chassis 1-2

KING MFG. CO. Thrill Box AC, SW Schematic 1-2 10 -KI Schematic, socket 1-1 Auto Box Schematic 1-2 25 Schematic, socket 1-1 30 Schematic, socket 1-1 E Schematic, socket 1-2 F Schematic, socket 1-2 NORDEN-HAUCK, INC. G Schematic, socket H Schematic, socket J Schematic, socket 80 Schematic, socket 81 Schematic, socket 82 Schematic, socket

1-3 1-3 1-4 1-4 1-5 1-5

Super DX -5 Schematic Super DX -5A Schematic Admiralty Super 12 Schematic C-7 Schematic Super 10 Schematic

1-1 1-1 1-2 1-3 1-3

Royal (97) Schematic, socket 1-6 Imperial (98) Schematic, socket 1-6 Monarch (101) Schematic, socket, voltage 1-7 OPERADIO CORP. Royal (97) Voltage 61 Schematic, socket 62, 63 Schematic, socket 71 Schematic, socket

1-7 1-8 1-8 1-8

1925 Schematic, Misc 1926 Schematic, Misc 7 Schematic, Misc

1-16 1-16 1-16

KOLSTEB RADIO, INC. 6D, 6E, 6G, 6H (1927) Schematic, socket 1-1 OZARKA, INC. 7-A, 7-B (1926) Schematic, socket l-1 91 Battery Schematic, chassis 1-1 8A, SB, 8C (1926) Schematic, socket 1-1 Viking 90 AC Schematic, chassis, socket, 6-F, 6-J, 6-K, 6-L, 6-M, 6-R Schematic, socket, voltage 1-2 voltage 1-2 K-20, K-22, K-27 Schematic, socket, voltage 1-3 K-21, K-23, K-28 Schematic, socket, voltage 1-4 K-23 Reproducer Schematic 1-2 K-24 (250) Schematic 1-5 PHILCO RADIO & TELEVISION CORP. K-24 (210) Schematic, socket, voltage K-30, K-32 Schematic, socket K-42 Schematic, socket, voltage

1-5 1-6 1-7

B-253 Power Unit Schematic, data B-603 Power Unit Schematic, data 180-B Power Unit Schematic

1-1 1-1 1-2 K-43, K -43A (1929) Schematic, socket, voltage 1-8 B Part of AB Unit Chassis layout 1-2 K-44 (1929) Schematic, socket, voltage 1-9 AB -423, AB -463, AB -623, Schematics and layouts of

K-45 Schematic, socket 1-10 AB -663 power units 1-3 K-60, K-62 Schematic 1-11 DB, AB -463, AB -623, K-70, K-72 Schematic 1-12 AB -663 Specifications 1-4 K-80, K-82 Schematic 1-13 3 Transitone Schematic, compensating data, K-90, K-92 Schematic 1-14 parts list 1-5

20, 20-A Schematic, chassis view 1-6 R. E. LACAULT 30 Schematic, socket, chassis view

35 Schematic, voltage, data 1-7 1-8

All Wave Electric 9 Schematic, parts list, Misc 1-11 35 Chassis, data . 1-9 LR -4 Schematic, Misc 1-11 40 DC Schematic, voltage, data 1-10 L-2 Ultradyne Schematic, Misc 1-11 41 DC, 42 DC Schematic, socket, voltage, data....1-11

46, 46-E DC Chassis, voltage, parts list 1-12 LANG RADIO CO. 46, 46-E DC Schematic, voltage, data

50, 50-A Schematic, chassis, data 1-13 1-14

BA -5 Schematic, socket 1-1 50, 50A Voltage, parts values 1-15 BD -5-P Schematic, socket 1-1 65 Schematic, socket, voltage 1-16 BD -6 Schematic, socket 1-1 70, 70-A (Below No. BD -6-P Schematic, socket 1-2 B-22,000) Schematic, socket, voltage, data....1-17 F-9 Schematic, socket 1-2 70, 70-A Chassis, parts values 1-18 J-7 Schematic, socket 1-2 76 Schematic, socket, voltage - 1-19 M-7 Schematic, socket 1-3 77, 77-A Schematic, socket, data 1-20 R-8 Schematic, socket 1-3 82, 86 Schematic, socket, voltage 1-21

87 Schematic, socket 1-22 C. R. LEUTZ, INC.

C-10, Navy Model Schematic 1-1

95 Schematic, socket, voltage, data....1-23 96, 96-A Schematic, socket 1-24 112, 112-A (Below No.

Silver Ghost Schematic 1-1 174,001) Voltage, parts, values 1-25 C Schematic 1-1 112, 112-A Schematic, socket 1-26 Trans -Oceanic Schematic 1-2 211, 211-A Schematic, socket, data 1-27 Seven Seas Schematic, socket 1-2 212, 212-A Radio-

Phonograph Schematic 1-26 LINCOLN RADIO CORP. 270, 270-A Schematic, data

296, 296-A Schematic, socket, data 1-28 1-30

8-80 Schematic 1-1 500 Series Schematic, chassis wiring 1-29 31 Schematic 1-1

MADISON -MOORE PILOT RADIO & TUBE CORP. Superheterodyne Schematic, Misc One -Spot Super Schematic, Mise

1-12 1-12

171 Power Amplifier Schematic Public -Address System Schematic

1-1 1-1

K-111 ABC Pack Schematic 1-2 THE MAGNAVOX CO. Pilotone B Pack Schematic 1-2

One Dial Schematic, Misc A Schematic, Misc D Schematic, Misc

1-13 1-13 1-13

ABC Pack for SP5 Schematic Jumbo Power Pack Schematic Jumbo ABC Schematic Air -Hound (All Electric) Schematic

1-2 1-2 1-2 1-3

Air Scout (All Electric) Schematic 1-3 MAJOR LABORATORIES Pilotone (Electric) Schematic, socket 1-3

250 Amplifier Schematic, Misc 250 Amplifier Power Unit Schematic, Misc 12 Schematic, Misc ML -210 Amplifier Schematic, Misc

1-14 1-14 1-14 1-14

K-110, Super -Wasp, Battery Schematic, socket K-115, AC Super -Wasp Schematic, socket K-117, Twin Screen -Grid 8 Schematic K-121, K -121X, Country

Special Schematic, socket

1-4 1-4 1-4

1-5

McMILLAN RADIO CO. PE -6, SG, K-122, K-123,

K-124 Schematic, socket 1-5 8 (2 types) AC Schematic, socket, voltage Series 900 Schematic, socket, voltage

1-1 1-2

K-126, K-128 Schematic, socket 140 Auto Set Schematic, socket, wiring data S -W Converter Schematic

1-5 1-6 1-6

MONTGOMERY -WARD & CO. AC Midget, S-155, S -155-A,

S -155-B, S -155-F, C -157 C -157-A, C -157-B, C-157-1

62-055, 49, 1522, 1922, 1562 Schematic, socket, chassis, data 1-1 (2 Types) Schematic, socket 1-7


RCA -VICTOR CO., INC. MODEL AP -736 AP -736-B AP -777-C AP -947 AP -951 AP -951-A, 974-A,

AP -997-A AP -935 AP -937 AP -995 AP -997, AP -952 AP -997-C AP -1080 12-25 Tuscany 8-60 Radiola Grand Radiola Senior Radiola AR Radiola RS Radiola II Radiola III Radiola Balanced Amplifier Radiola Senior Amplifier Radiola III -A Radiola IV Radiola V Radiola VI Radiola VII Radiola VII -B Radiola Super VIII Radiola IX R-5 AC R-5 AC

R-7, R-9 AC Superette R-7, R-9 AC Superette R-15 Radiola 16 Radiola 17 Radiola 18 DC Radiola 18 AC Radiola 20 Radiola 21, 22 Radiola 24 Radiola 26 Radiola 25 Radiola 25 (104 Power Pack) Radiola 28, Battery Radiola 28 AC (104 Power

Supply) Radiola 30 AC (104 Power

Pack) Radiola 30-A Radiola 30-A Power Pack Victor R-32, RE -45, R-52 Radiola 32 AC Radiola 33 AC Radiola 33 DC Victor R-35, R-39, RE -57

Victor R-35, R-39, RE -57 Radiola 41 DC AF and

Power Unit Radiola 41 AC RF Sterling SPU Receptor SPU Radiola 42 R-43

R-43 Radiola 44 AC Radiola 46 DC Radiola 46 AC 44, 46 RF Chassis 44 Early SPU 44 Late SPU 46 SPU Radiola 47 Radiola 48 Radiola 60 Radiola 62 Radiola 64 Radiola 66 Radiola 67 Radiola 80 Radiola 82 Radiola 82 and 86 (Remote

Control) Radiola 82 (Remote Control) Radiola 82 and 86 (Remote

Control) Radiola 82 and 86 (Remote

Control) Radiola 82 and 86 (Remote

Control) Radiola 86 AC Circuits Radiola 86 SW Adaptor, SW -10 SW -10 100-A, 100-B, 103, 104 -AC 105, 106 Victor Alhambra I (7-1) Victor Alhambra II,

Florenza Victor Borgia I Victor Electrola Hyperion Victor 7-10, Radiola 16 Victor 7-11, Radiola 18 Victor 7-25, Radiola 17 Victor Borgia II Victor Tuscany Victor Cromwell, 12-1 Victor 12-15 Victor 12-15-C Victor E-35 Victor 7-3, 7-30, R-20 Victor 7-26 Victor 8-60 Victor 9-15 Victor 9-18

PAGE Schematic 1-1 Schematic, chassis wiring 1-1 Schematic 1-2 Schematic 1-2 Schematic 1-2

Schematic Schematic Schematic Schematic Schematic Schematic Schematic Socket layout Socket layout Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket Schematic, socket, data Schematic, socket Parts list, notes Schematic, chassis wiring,

voltage 1-11 Chassis wiring 1-12 Schematic, voltage, service notes 1-13 Schematic, socket, voltage, data 1-14 Schematic, data, socket 1-15 Schematic, socket, voltage, data 1-15 Schematic, socket, voltage 1-16 Schematic, socket 1-16 Schematic, socket, data 1-17 Schematic, socket, voltage 1-18 Schematic, socket 1-19 Schematic, socket 1-19 Schematic, socket, wiring 1-20 Schematic, voltage 1-21 Schematic, wiring 1-22


Schematic, wiring, data 1-24 Schematic, socket, voltage 1-25 Schematic 1-25 Schematic, socket, voltage, data 1-26 Schematic, socket, data 1-27 Schematic, socket, voltage 1-28 Schematic, socket 1-28 AF Chassis wiring, socket,

voltage, data 1-29 Schematic, data 1-30

Chassis wiring, voltage 1-31 Schematic, socket, data 1-32 Schematic, voltage 1-32 Schematic, voltage 1-32 Schematic, notes 1-34 Schematic, socket, voltage,

chassis wiring 1-33 Service notes 1-34 Terminal voltage 1-35 Schematic 1-35 Terminal voltage 1-35 Schematic, socket, voltage 1-36 Schematic 1-36 Schematic 1-36 Schematic 1-36 Schematic, voltage, socket 1-37 Schematic, socket, voltage, data 1-38 Schematic, socket, voltage, data 1-39 Schematic, socket, voltage, data 1-40 Schematic, socket, voltage, data 1-41 Schematic, socket, voltage, data 1-42 Schematic, data 1-43 Schematic, socket, voltage 1-44 Schematic, socket 1-45

Assembly wiring 1-46 Schematic, notes 1-47

Receiver chassis wiring 1-48

Power unit chassis wiring 1-49

Remote control units, data 1-50 Schematics 1-51 Schematic, data 1-52 Schematic, chassis wiring 1-53 Voltage, chassis views, data 1-54 Schematic, socket, data 1-55 Schematic, socket, wiring 1-56 Schematic, socket 1-57

Schematic, socket 1-57 Schematic, socket 1-58 Schematic, socket 1-58 Schematic, socket 1-59 Schematic, socket, voltage 1-59 Schematic, socket 1-59 Schematic, socket 1-60 Schematic, socket 1-60 Schematic, socket 1-60 Schematic, socket 1-61 Schematic, socket 1-61 Cable wiring 1-61 Schematic, socket 1-62 Schematic, socket 1-62 Schematic, socket 1-63 Schematic, socket 1-63 Schematic, socket, voltage 1-64

1-2 1-3 1-3 1-4 1-4 1-4 1-3 1-4 1-4 1-5 1-5 1-5 1-5 1-6 1-6 1-6 1-6 1-7 1-7 1-7 1-7 1-8 1-8 1-9 1-8 1-10

MODEL Victor 9-25 Victor 9-40 Victor 9-54 Victor 9-55 Victor 10-51-A Victor 10-69 Victor 10-70 Victor 10-70-A Victor 12-25 Theremin Photophone SPU 62 Photophone SPU 63 Photophone SPU 206

PAGE Schematic, socket 1-65 Schematic 1-65 Schematic, socket, voltage 1-66 Schematic, socket 1-67 Schematic, socket 1-67 Schematic, socket, chassis wiring 1-68 Schematic, socket 1-69 Schematic, socket 1-69 Schematic, socket 1-69 Schematic, data 1-70 Schematic, chassis 1-71 Schematic 1-71 Schematic 1-71

RADIART LABORATORIES Magnaformer 9-8 Schematic, Misc 1-4

RADIO PRODUCTS CO. Dayrad 8-80 Dayrad 21 Output Meter 330 Mmf. Oscillator Dayrad 180 Dayrad HR Dayrad 870 Test Meter Dayrad 875

74-R 27-R Early and Late

Schematic 1-1 Schematic 1-2 Schematic 1-2 Schematic 1-3 Schematic 1-3 Schematic 1-3 Schematic 1-3

RADIOTROPE Schematic, socket, voltage 1-1 Schematic, socket, voltage 1-2

REES-MACE 5 -Tube Schematic, Misc 1-17 5 -Tube Screen Grid Schematic, Misc 1-17

REMLER COMPANY, LTD. 14 Schematic, socket, chassis,

voltage, data 1-1 Best 115 KC Schematic 1-2 Remler 29 Schematic 1-2

SAMSON ELECTRIC CO. S-100 Schematic 1-1 PAM -19 Schematic 1-1 Amplifier Schematic 1-1 PABC-2 Schematic 1-2 PABC-3 Schematic 1-2 PAM -3 Schematic 1-2 PABC-4 Schematic 1-3 PABC-5 Schematic 1-3

SCOTT TRANSFORMER CO. World Record 10 Shield Grid 9 All -Wave Super All -Wave Super All -Wave Super,

Pack All -Wave Super, 150 Power

Pack

11,12,15,16

106-B 108 108-A, 110 440 444 660 666-C 1020, 1030

145 Power

Schematic 1-1 Schematic 1-1 Receiver, chassis wiring, data 1-2 Schematic 1-3

Schematic, chassis wiring 1-4 Chassis views, schematic, control

box 1-5

SENTINEL RADIO CORP. (104) Schematic, socket, voltage, parts

values 1-1 Schematic 1-2 Schematic, socket 1-3 Schematic, socket 1-4 Schematic 1-5 Schematic, socket, voltage 1-5 Schematic 1-6 Schematic, socket 1-6 Schematic 1-7

SILVER -MARSHALL, INC. 30 Schematic, socket, voltage 1-1 440, Time Signal Amplifier Schematic 1-1 30-B, 60-B, 75-B, 90-B Schematic, socket, voltage 1-2 30 Circuit B Schematic, data 1-3 30 Circuit C Schematic, data 1-3 30 Circuit D Schematic, data 1-4 30 Circuit E Schematic, data 1-4 33-A Power Supply, 25 and

60 Cycles Schematic, socket voltage 1-5 34-A Schematic, socket 1-6

35-

5 A' Schematic, socket 1-6 36-A Schematic, socket, voltage 1-7 Bearcat, 37, 38, 39, 782

Midget Schematic, voltage 1-8 SM -651 Power Pack Schematic 1-9 SM 650-B Schematic 1-10 SM -652 Schematic 1-10 SM -660 Unipack Schematic 1-9 SM -660-B (Without pushpull

amplif.) Schematic 1-9 SM-669 Schematic, chassis wiring 1-10 670 -ABC ' Schematic, chassis wiring 1-11 670-B Schematic, chassis wiring 1-11 675 Schematic, chassis wiring, parts

list 1-12 677, 25 and 60 cycles Schematics, chassis wiring 1-13 678 -PD Schematic, chassis wiring 1-14 679 Schematic 1-14


SILVER -MARSHALL (Cont'd.) MODEL PAGE

STEWART-WARNER CORP. MODEL PAGE

685 Schematic 1-15 300, 305 Schematic, socket 1-1 690 Schematic 1-15 305, 315, 320 Schematic, socket 1-1 692 Schematic 1-15 310, 325 Schematic, socket 1-1 710, Sargent -Raymond 7 Schematic, chassis view, data 1-16 330 Schematic, socket 1-1 712 Schematic, socket, chassis view 1-17 335, 340 Schematic, socket 1-1 677-B Schematic, voltage 1-17 345, 350, 355, 360 Schematic, socket 1-1 714 Schematic, socket, voltage,

chassis views 1-18 385, 390 Schematic, socket 500, 520, 525 Schematic, socket

1-2 1-2

720 AC Schematic 1-19 530, 535 Schematic, socket 1-2 720 Battery Schematic, chassis view 1-19 530, 535, 715, 720 SPU Schematic 1-2 722 AC Schematic, socket, voltage, data....1-20 700, 705, 710 Schematic, socket 1-3 722 DC Schematic, chassis wiring 1-21 715, 720 Schematic, socket 1-3 724 AC Schematic, socket, voltage,

chassis view 1-22 750 Schematic, socket 801, 802 Schematic, socket

1-3 1-4

724 DC Schematic, socket 1-23 801, 801-A, 811, 811-A Long -Wave Receiver Schematic 1-23 (Series B) Schematic, socket, voltage 1-4 726 Schematic, socket, voltage, parts PU 801, 801-A, 811, 811-A Schematic 1-4

list 1-24 806 (Series A) Schematic, socket 1-5 730, 731 Schematic 1-25 806 (Series B) Schematic 1-5 735 AC Schematic 1-25 950 Series (Battery) Schematic, socket, voltage 1-5 735 DC Schematic 1-25 950 Series AC Schematic, socket, chassis 1-6 737 AC Bearcat Schematic, socket 1-26 901, 902, 903, 911, 912, 913 Schematic, socket, voltage, 738 AC SW Converter Schematic, socket 1-26 chassis 1-7 739 SW Superhet 950 Series DC Schematic, socket 1-8

Converter Schematic, data 1-27 971, 972, 973 DC Schematic 1-9 740 DC Schematic, chassis 1-28 980 Battery Schematic 1-9 740 AC Schematic 1-28 R -100-A, B, E AC Schematic 1-10 770 Auto Schematic, socket, chassis view 1-29 R-100 Series Chassis wiring, voltage 1-10 A Schematic, socket 1-30 R -100-A Continuity tests 1-11 F Schematic, socket 1-30 R -100-C DC Schematic, socket, voltage 1-12 D, E Schematic, socket, voltage 1-31 Resistors Variable and fixed, Part 1 1-13 S -C II Schematic 1-32 Resistors Fixed, Part 2 1-14 620 S -C Schematic 1-32 A -F. Transformers Data 1-15 635 Kit Schematic 1-32 642 AC Tuner Schematic 1-32

STORY & CLARK RADIO CORP. M. B. SLEEPER 36 Schematic, socket, chassis 1-1

RX-1 Schematic, Misc 1-18 43, 51 Schematic, socket 1-2

SIMPLEX RADIO CO. STROMBERG-CARLSON TEL. MFG. CO. D Schematic, socket G Schematic 6-A Schematic, socket F Schematic

1-1 1-1 1-2 1-2

1-A Schematic, socket 1-B Schematic, socket 501, 501-A, 501-B, 502,

502-A, 502-B Schematic, socket

1-1 1-1

1-1 403 -AA Schematic, socket 1-2

SONORA PHONOGRAPH CO. 523, 524 AC Schematic, socket 1-2

3R, 4R Schematic 5R Schematic 7P Schematic A30, A32 Schematic A30, A32 Socket, voltage, chassis wiring B31, 25 cycles Schematic, socket A36, A46 Schematic, socket, voltage A40 Schematic A40 Chassis wiring, voltage, socket DeLuxe 44 Schematic, voltage 2M Automatic Stop Schematic, parts details 2 RP, 25 cycles Schematic

1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1-10 1-11 1-12

403, 403-A Schematic 403-B Schematic 301-A Schematic 601, 602 Schematic, socket 633, 634 Schematic, socket 635, 636 (2 types) Schematic, socket, voltage 638 AC Chassis wiring 638 AC Schematic, socket, voltage 638 DC Schematic, socket 641, 642, 652, 654 Schematic, socket, voltage 642 Chassis wiring 652, 654 Chassis wiring 734 Schematic, socket

1-3 1-3 1-3 1-4 1-4 1-5 1-6 1-7 1-7 1-8 1-9 1-10 1-11

744 Schematic, socket 1-11 404 -RA Schematic, socket 846 AC Schematic, socket, voltage

1-11 1-12 SPARKS WITHINGTON CO.

AR -19 Schematic 1-1 846 Internal wiring 1-13 AR -50 Schematic 1-1 10, 11 Schematic, socket, voltage 1-14 AR -19, AR -50 Chassis views 1-2 10, 11 Chassis wiring 1-15 5-15, 5-26 Schematic 1-3 12, 14 Schematic, socket, voltage 1-18 6-15, 6-26 Schematic 1-3 Phonograph Pickup Schematic 1-16 31, 32 Schematic 1-4 Multiple Record Phonograph Chassis wiring 1-16 39 Schematic 1-4 12, 14 Chassis wiring 1-17 49 Schematic 1-5 19, 20 AC Schematic 1-18 AC -7, 62, 63 Schematic, socket, voltage 1-5 19, 20 AC Chassis wiring 1-19 55 AC, Police Desk Schematic 1-6 19, 20 AC Voltage, parts values 1-20 69, 79-A, 89 Schematic, voltage 1-7 19, 20 AC Chassis views data 1-21 89-A Schematic, voltage 1-7 Resistors, Carbon Color code, values 1-8 Resistors, Carbon and Wire - SUPREME INSTRUMENTS CORP.

wound Color code, values 99 Ensemble wiring 99 Schematic 109 DeLuxe Schematic 110, 111 AC, (2 types) Schematic 301 AC Schematic, voltage 420 AC Schematic 420 AC Chassis layout 420 DC Schematic

1-9 1-10 1-11 1-12 1-13 1-14 1-15 1-16 1-17

19 Revised Tube Checker Schematic 90 Analyzer Schematic Output Meter Schematic 99-A Analyzer Schematic 400-A Diagnometer Schematic 400-B, 84 Series

Diagnometer Schematic 70 Oscillator Schematic

1-1 1-2 1-2 1-3 1-4

1-5 1-6

420 DC Chassis layout 1-18 589 AC Schematic, voltage 600, 610, 620, 737 AC Schematic, voltage

1-19 1-20 TEMPLE CORPORATION

930 AC Schematic, voltage 1-21 8-60, 8-80, 8-90 Schematic, socket, voltage 1-1 931 AC Schematic, voltage 1-22 8-61, 8-81, 8-91 Schematic, socket, voltage 1-2 931 DC Schematic 1-22

THORDARSON ELECTRIC MFG. CO. STANDARD RADIO CORP.

Standardyne 29 AC Schematic, socket, Misc 1-19 R-171 Schematic, chassis wiring PP -171 Schematic, chassis wiring

1-1 1-1

210 Power Amplifier Schematic, chassis wiring 1-2 STEINITE RADIO CO. R-210 Schematic, chassis wiring 1-3

40, 40-A, 50, 50-A, 1 02, 102-A Schematic 1-1 213 Schematic Eliminator Schematic

1-3 1-3

40-C, 60-C, 102-C Schematic, voltage, socket .40, 45, 40-A, 45-A, 50-A

1-2 250 Power Amplifier Schematic, chassis wiring 14 102 SPU Schematic, voltage, socket 1-2

70, 80, 95 (Chassis #10) Schematic, socket, chassis wiring 1-3 TODD ELECTRIC COMPANY 261, 262, 263, 264, 2 65 Schematic, socket, voltage 990, 991, 992, 993 Schematic, socket, voltage

1-4 1-5 "A" Unit Schematic, Misc 1-18

STENODE RADIOSTAT TRANSFORMER CORP. OF AMERICA Stenode Radiostat Schematic, Misc 1-18 40 Schematic, socket, voltage,

chassis 1-1 40 Chassis data 1-2

STERLING MFG. CO. 51, 53, 55 AC Chassis, socket, voltage 1-3 3-A Schematic 1-1 51, 53, 55 AC Power pack chassis, receiver 4 Schematic 1-2 breakdown 1-4 Miniature Schematic, voltage 1-3 AC -60, 25-60 Schematic, socket, voltage, data....1-5 Miniature Chassis views, data 1-4 AC -60, 25-60 Chassis, test data 1-6 F Schematic 1-5 AC -61, 25-61 Schematic, socket, data 1-7 8 -Tube Receiver Schematic 1-5 AC -61 Chassis layout 1-8 R-511 Schematic 1-8 AC -61 Voltage, data 1-9 R-522 Schematic 1-6 AC -70 Schematic, socket, data 1-7


TRANSFORMER MODEL AC -70 AC -70 AC -80, 81 AC -80, 81 AC -80, 81 AC -84, 85 AC -90, 90-A, 91 AC -90, 90-A, 91 AC -90, 90-A, 91

CORP. OF AMERICA (Cont'd.) PAGE

Chassis layout 1-8 Voltage, data 1-9 Schematic, socket 1-10 Chassis layouts 1-11 Voltage breakdown analysis 1-12 Schematic, socket, voltage, data..: 1-13 Schematic, socket 1-10 Chassis layouts 1-11 Voltage, breakdown analysis 1-12

TRAV-LER RADIO & TELEVISION CORP. 6, 7 Schematic, socket 1-1 6, 7 AC and DC Power

Packs Schematic, data 1-1 SG -DX, C Schematic 1-2 K Schematic 1-2 Trav-Lette Schematic 1-2

TYRMAN ELECTRIC CORP. Tyrman 10 Schematic, Misc 1-20 Shielded Grid 7 Schematic, Misc 1-20 Imperial 80 Schematic, Misc 1-20

UNITED AMERICAN BOSCH CORP. BAN "B" Power Units Schematics 1-1 5 AC 5 AC 16 27 28 AC (2 types) 29 AC 28 AC Power Pack 29 AC, 825 Power Pack 35 46 AC 46, 126, 146, 166, 176 48, 49 AC 48, 49 AC 54 DC 54 DC 56 Battery 56 Battery 57, 58 58 AC

66, 76, 76-L 66AC, 96, 116, 136 AC 60, 60-D, 60-E, 61 62 DC 62 DC 63 DC 63 DC 73, 74 73, 74

80

DC 96, 156 107 AC

Schematic, socket, voltage 1-2 Parts values 1-3 Schematic, socket, voltage 1-4 Schematic, socket, voltage 1-4 Schematic, socket, voltage 1-5 Schematic, voltage 1-5 Chassis, parts values 1-6 Schematic, chassis, voltage 1-7 Schematic, socket, voltage 1-4 Schematic, socket, voltage 1-4 Schematic, socket, voltage 1-8 Schematic, socket, voltage, data 1-9 Chassis, wiring views 1-10 Schematic, socket, voltage, data 1-11 Chassis wiring views 1-12 Schematic, socket, parts list 1-13 Chassis wiring views 1-14 Schematic, socket, voltage 1-15 Schematic, socket, voltage,

parts list 1-17 Schematic, socket, voltage 1-15 Schematic, socket, voltage 1-15 Schematic, socket, parts list 1-16 Voltage, parts list 1-18 Schematic, socket 1-19 Voltage, parts list 1-20 Schematic 1-21 Parts list, voltage, data 1-22 Schematic, socket, chassis

wiring 1-23 Schematic, voltage, socket,

parts list 1-24 Schematic, socket, voltage 1-8 Schematic, socket, voltage 1-15

UNITED REPRODUCERS CORP. 20 Series Schematic 1-1 65 Schematic, socket, data 1-2 70 Series (71, 72) Schematic, socket 1-3

17 37

U. S. ELECTRIC CORP. Schematic, socket, data, Misc 1-21 Schematic, socket, data, Misc 1-21

U. S. RADIO & TELEVISION CORP. 20 Schematic, socket 1-1 20 Voltage, data 1-2 26 Schematic, socket, voltage 1-3 26-P Schematic, socket, voltage 1-3 26 Chassis wiring 1-4 26-P Parts list, voltage, data 1-4 27 Early Schematic, socket, voltage 1-5 27 Late Schematic, socket, voltage 1-5 27-P Schematic, chassis wiring of

motor board 1-6 28 Early Below *373,601 Schematic, socket, voltage 1-7 28 Late Above *373,601 Schematic, socket, voltage 1-7 28 Chassis wiring 1-8 29 Schematic, voltage 1-9 Apex 31 Schematic, socket, voltage 1-10 31-R (Remote Control) Schematic 1-10 32 Series Schematic, socket, voltage 1-11 Apex 36 Schematic, socket, voltage 1-12 Apex 37 Schematic, voltage 1-12 41-60, 43-25 Schematic, socket, voltage 1-13 42-60, 44-25 Schematic, socket 1-13 46, 47 Apex, 46-A, 47-A Schematic, socket, voltage, data 1-14 48, 48-A, 48-W, 482 Schematic, socket, voltage 1-15 49 Schematic 1-15 80 Schematic, socket, voltage 1-16

VALLEY ELECTRIC CO. MB "A" Power Unit Schematic, Misc 1-22

GEORGE W. WALKER CO. Victorian Standard Chassis wiring, Misc 1-23 Victorian Universal Chassis wiring, Misc 1-23

WELLS-GARDNER & CO. C, CG 1st and 2nd types Schematic, socket 1-1 C, CG Voltage, data, socket 1-2 72 Schematic, socket 1-3 80, 82-A Schematic, socket, data 1-4

WESTERN ELECTRIC CO. D-95508 Schematic 1-1 8-B Schematic 1-1 8-C Schematic 1-1

MODEL 9-A 10-A 17-B 25-B 32-A 41-A 42-A 43-A 45-A 46-A

WR -4 WR -5 WR -6 WR -7 WR -10 WR -12 WR -14

PAGE Schematic 1-2 Schematic 1-2 Schematic 1-2 Schematic 1-3 Schematic 1-4 Schematic 1-3 Schematic 1-4 Schematic 1-4 Schematic 1-3 Schematic 1-4

WESTINGHOUSE ELECTRIC & MFG. CO. See RCA Victor 48 See RCA Victor R-80 See RCA Victor R-82 See RCA Victor R-86 See RCA Victor R-7 See RCA Victor R-9 See RCA Victor R-5

WESTON ELECTRICAL INSTRUMENT CORP. Jewell Test Panel Schematic 1-1 Jewell 133 Schematic 1-2 Jewell 133-A Schematic - 1-2 Jewell 137 Schematic 1-3 Jewell 198, 199 (2nd type) Schematic 1-4 Jewell 209 Schematic 1-4 Jewell 408, 409 (1st type) Schematic 1-5 Jewell 408, 409 (2nd type) Schematic 1-6 Weston 526, Type 7 Schematic 1-7 Weston 537 Schematic 1-8 Jewell 540 Schematic 1-9 Jewell 560 Schematic 1-9 Weston 547 Schematic 1-10 Weston 555 Schematic 1-11 Weston 584 Schematic 1-11 Weston 565 Schematic 1-12 Jewell WD 566 Schematic 1-13 Weston 566 Schematic 1-14

WHOLESALE RADIO SERVICE CO., INC. Duo -Symphonic Junior 1931 Schematic, socket, voltage 1-1 Great Duo -Symphonic Schematic, socket, voltage 1-1 Duo -Symphonic 1930 Schematic, socket, voltage, data 1-2

Vitaphone 54

ZE-3 ZE-4 8E-6 11, 12, 14 (1st type) 12 (2nd type) 11-E, 14-E 17 ZE-5 Power Unit 33-X, 362-X ZE-10 ZE-13 Super -Zenith 27 31, 32 Battery 34-P, 342-P ZE-11 ZE-14

ZANEY-GILL CORP. Schematic, notes, Mise 1-24

ZENITH RADIO CORP. Schematic 1-1 Schematic 1-1 Schematic 1-1 Schematic, socket 1-2 Schematic, socket 1-2 Schematic, socket 1-3 Schematic, socket 1-4 Schematic 1-4 Schematic, socket, voltage 1-5 Schematic 1-5 Schematic 1-5 Schematic, socket 1-6 Schematic, socket 1-6 Schematic, socket, voltage 1-7 Schematic 1-7 Schematic 1-7

33, 34, 35, 35-A, 342, 352, 352-A, 362

ZE-10 ZE-13 37-A 35-PX, 35-APX, 352-PX,

352-APX ZE-18 35-P, 35 -AP, 352-P,

352 -AP ZE-11 for 35-P, 35 -AP,

37-A ZE-14 for 352-P, 352 -AP 39, 39-A, 392, 392-A 40-A ZE-12 for 39, 39-A, 40-A ZE-15 for 392, 392-A ZE-16 Filter 41, 42 422 52, 53 54 52, 53, 54, 55 ZE-50 60, 61, 62, 64, 67, 602, 613,

622, 642, 672 8E-60 ZE-70 71, 72, 73, 77, 712, 722,

732, 777 70 80 Hypermetron 8E-80 80 Hypermetron AH, CH, RH

AH, CH, RH LP 8 Tube Zenette, Chassis

A, B, C, D (2004) 5 Tube Zenette, Type

2009-C 563 DC 333, 353-A DC ZE-17 27 Super Zenith

Schematic, socket, voltage 1-8 Schematic 1-8 Schematic 1-8 Schematic 1-9

Schematic, socket, voltage 1-9 Schematic 1-9

Schematic, socket, voltage 1-10

Schematic 1-10 Schematic 1-10 Schematic, voltage 1-11 Schematic, socket 1-11 Schematic 1-12 Schematic 1-12 Schematic 1-12 Schematic, socket, voltage 1-13 Schematic, socket, voltage 1-13 Schematic, socket 1-14 Schematic, socket 1-14 Voltage, data 1-15 Schematic 1-15

Schematic, socket, voltage 1-16 Schematic 1-17 Schematic 1-17

Schematic, socket, voltage 1-18 Tone control, installation 1-19 Schematic, socket 1-20 Schematic, parts list 1-21 Parts list 1-22 Schematic, socket, chassis,

voltage 1-23 Service data, parts list 1-24 Schematic, socket, parts list 1-25

Schematic, socket, parts list - 1-26

Schematic, parts list 1-27 Schematic, socket 1-28 Schematic, socket 1-29 Schematic 1-29 Schematic 1-30


A -C DAYTON PAGE 1-1

21 ST P

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THE A -C DAYTON CO.

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PAGE 1-2 A -C DAYTON

MODEL XL - 50 XL - 60

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THE A -C DAYTON CO.

ON( D/AL CONTROL

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VOLTAGES OF VARIOUS CIRCUITS Plate Volts

r5o V. 15o V. 150 V. 25 V.

I20 V. 16o V.

CX-326

o 14.

AC -63 (A.C.)

4-CX326 1-C327 1.CX3.1A 1-CX380

Plate Current Filament Volts "IC" Bias

4 mils 1.5 V. II V. 4 mils 1.5 V. II V. 4 mils I.5 V. II V. 1.5 mils 2.5 V. o V. 2 mails 1.5 V. II V.

16 mils 5.00 V. 4o V.

The above readings are taken at tao Volt line voltage. These readings may vary 5¶4 plus or minus.



MODEL AC - 65

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VOLTAGES OF VARIOUS CIRCUITS

AC -65 (A.C.)

4-CX326 1-C327 1.CX310 1-CX381

Tube Socket Plate Volts Plate Current Filament Volts "C" Bias

Ist R. F. 145 V. 4 mils 1.5 V. II V.

znd R. F. 145 V. 4 mils 1.5 V. II V.

3rd R. F. 145 V. 4 mils 1.5 V. II V.

Detector 25 V. 1.3 mils 2.45 V. o V.

ist A. F. 120 V. 2 mils 1.5 V. II V.

2nd A. F. 430 V. 18 mils 6.75 V. 42 V.

The above readings are taken at 120 Volt line 'oltage. Readings may vary .5% plus or minus.



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VOLTAGES AT THE VARIOUS SOCKETS

Tube Socket Plate Volts Plate Current Filament Volt C Bias

ist R. F. 130 V. i mil. 2.4 V. r.5 V. 2nd R. F. Z30 V. 4 mils. 1.4 V. 9 V. 3rd R. F. 130 V. 4 mils. 1.4 V. 9 V. Detector 38 V. 2 mils. 2.4 V. o V. ist A. F. zio V. 2 mils. 1.4 V. 9 V.

2nd A. F. 35o V. 40 mils. 6.75 V. 63 V.

AC -88 (A.C.)

1-C324 3-CX326 1-C327 1CX350 1-CX3a1

The above readings can only he taken on a Set Analyzer. They may vary 5% depending on tubes and line voltage.



MODEL THE A -C DAYTON CO. "Navigator"

c.tC DAYTON NAVIGATOR

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ACME APPARATUS PAGE 1-1

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ACME APPARATUS CO.

4

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MODEL 5 Tube Reflex "B" Unit

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CONSTANTS FOR ACME 6 TUBE REFLEK(1926)

.0004 mfd. .,C .00025 mfd.

C2 .002 mfd. GL .5 to 2 meg C4 .002 -mfd. R1 6 ohms C5 1. ed. R2 1 ohm C3 2. mfd. R3 2000 ohms

4

ACME RrqRATVE CO. CUMWATOR

ACME APPARATUS CO. "B" ELIMINATOR (1926)



ACME ELEC. PAGE 1-1

ACME ELECTRIC & MFG. CO.

CHASSIS

Black

AC7

MODEL AC..? SG -83

216 117 116 /7/

2.5

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ACME SG 88



ALL-AMERICAN PAGE 1-1

MODE.. Navajo ALL-AMERICAN MOHAWK CORP. y

Battery Operated

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5 TUBE VA CIRCUIT -1925-26.-


PAGE 1-2 ALL-AMERICAN

MODEL 115 -1926 ALL-AMERICAN MOHAWK CORP. 5 Tube A11-Eleotrio

MODEL 115- 1926

5 Tube All -Battery

,000 0004

SO MMF.

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5 TUBE ALL ELECTRIC - 1926. MODEL -113

3MF0.

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S TUBE ALL APER-ICAN BATTERY SET. MODEL 115 - 1926-27.



ALL-AMERICAN MOHAWK CORP.

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MODEL Mohawk 226 12 Contact

Power Pack A-10 Eliminator

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Receiver Chassis

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MODEL 90 25 Cycle


VALUE AND PART N º OF CIRCUIT ELEMENT 5

UNIT CAPINIfO DARI N. MT COD IN MF I) PART N. UNIT CAD IN MED PAT NT UMI RCS MOMS RAT of Ú1Ú10051X0005 PART N. JNIT 0131010t600001N CI 01 555)5 CS 10 11 Ci 000025 51155 RI 300 552E 5 RS 100 5554 S 05 ZO 52711

CZ D SÒN« 3552.5(6 I.0 ( j 708-5 CIO 0S 5612.5 lit 10000 1515 R4 10000 51105 RIO 1000 550]5

C 3 0 551001 55525 C 7 I 0 o 05 20 5277-5 1.1 70000 5255 5 RII 0000 554E-5

C1 0002 55503 CO 20 0 R1 1500 4004-5 RE I000 40055

L

210

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J

DOWER TRANSFORM(R PART -105-A

Type of

Tube

227

227

227 227

227

227 227

245

245 280

T31 L _

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PflR0

CAT1100C PRON4

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ASSEMBLY NVMBCRS OF ITEMSVXD PART 173

iH CIRCUIT MOANORDE411.5PA M. PARTS MC

25 CYCLE SPCCII"1 0.21415c0NNluwSIW.0 0 ITCM

CIRCUIT DIAGRAM NO. 90 CHASSIS VOLTAGE READINGS.

Position of

Tube A

Volts

Tube in Tester B

Volts C

Volts

1 R. F. 2.3 100 6.25

2 R. F. 2.4 100 5.50

3 R. F. 2.3 95 6.25

4 R. F. 2.4 100 6.25

DET. 2.3 56 5.00

1 P. P. 2.4 90 5.00

1 P. P. 2.4 90 5.00

2 P. P. 2.2 210 42.00

2 P. P. 2.2 210 42.00

RECT. 4.5

Cathode - Heater Normal Volts Plate M. A.

6.0 3.5

5.5 3.5

5.5 3.5

5.5 3.5

5.0 0.5

5.0 3.5

6.0 3.5

24.0

24.0

38 x 2

SOCKET LAYOUT SAME AS NO. MODEL 90 - 60 CYCLE




YRCURONO PRRTNue.erw e. Ces e.. r EarrtRRrs UINTCaPI7IV0Pw7Mqlt COP MRIO PIN17ae Pig CR°RFß PAR7N. Per RCSltO1M3PVT N.IM7rRpMldtü PAU N UINi(dS.IMtlIMJPg17Ne Ip1IT7ßNIpYMJ PART O C-/ p¡ o.e Jrf! -S C-7 oat 0.Oo/ .1 or /9e -R R-1 3E0 6(20-5 ,,e7 7,7000 5191-3 R -/J 24000 S/7L-3.(-pe(a00 JI07-3 C-2 0/ ..w-'1115-3 Cd 0e/ seal -11(4410 R-2 rqu0a 75/-s Rd SNKHr106/-s 01a..1,1,4. eta/ -S C-3 1 0. -"e JJ<t-3 C9 O.GI J -3N 2e0R- C111 I ß-3 SeOe dsot-3 R-9 0J JSº/ -3 ÆLf 71,4m J174-3 C-4 Q1 ""'' J372-3 cep e1 Cí670 0 7Q.4 /eo J53I-3 /P-/0OJ - S211-3 R-ld 10 2,177.3 C -S 0.00025 5/11.5 C-// as R.f 20 2117-S R-// epos 1774-3 R/7 tese .reses ,C-6 goal Se-5 ea /.O ie R6 751006 1295-3 /7l1 70,.00 ,n91 -SR -/a 0.000 rí67-5

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MODEL 90 60 Cycle

71d 7tRN3 pr.,. u1 -n J.t

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2G-OrMweteC STwrrR 9 r+..r /19

Lyric No. 90 A. C. receiver -60 CYCLE

TUBE VOLTAGE AND CURRENT READINGS. Below is given a standard set of readings for the tubes of the Lyric A. C. No. 90 receiver, which will serve as a reference in tube voltage and plate current readings:

Type Position Tube Out Tube in Tester Cathode - of of A B A B C Heater Normal

Tube Tube Volts Volts Volts Volts Volts Volts Plate 227 1 R. F. 2.45

227 2 R. F. 2.45 227 3 R. F. 2.45

227 4 R. F. 2.45

227 DET. 2.45

227 1 A. F. 2 45

227 2 A. F. 2, 45

245 P. P. 2 55 245 P. P. 2.55 280 RECT. 5.30

120 2.40 114

120 2.40 115

120 2.40 113

120 2.40 113

84 2.40 16

94 2.40 30

128 2.40 106

256 2.45 232

256 2.45 232

4.90

Models 90, 93, 94, 95 (1929)

O ; O '27 'a5 4

4 3 2 1 á

DET RF RF RF RF ' RECT O 00000; 0: O '27 '27 '27 '27 '27 '27 '45 '80

PILOT 2.5 V.

FRONT

6.5 6.5 5.3

6.5 6.5 4.6

7.5 7.5 5.8

7.5 7.5 5.9

.5 .0 .7

.5 2.5 1.0

1.5 7.0 3.6 45.0 23.0 45.0 23.0

78.0



MODEL 96 60 Cycle

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FRcwr VIEW OF CONDENSER T£RMINHL5

14-

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FRONT YIEW OF

CONDENSER TERMINALS

3ri'RKLR 71-Rninirf4 SrRir


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MODEL 90 Data

/101 101 101',

CHOKE COI( p,R rÌ89-A

u 0 1 V_

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1 '1 11 1, I

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1 11 I

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POWER PACK TERMINALS NO. 90 CHASSIS

LOUDSPEAKER AND PLUG SPEAKER CRBLrOLI/6

6R,o Rrewc

r CwrNoor PRona

mi -Arra -re PRlNGS



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MODEL H

OOSL

FILTER BLOCK:

Black lead-ground. Green lead -1 microfarad. Solder lug next to green lead-.073 microfarads. Solder lead next to red lead -1 microfarad. Red lead -1.5 microfarads.



MODEL "J" Schematic

O

1-`1)°076'

*N.

-oaa oar


11 e

-

11 i- --- ---- 1

40008440Q..

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Ili O O \ O2 °0 M N'

F/N/S N T4 P S Al2 T '24 and '45 WIND/NC

w

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ti



The following table shows

Type of Tube '24 '24 '24 '24 '45 '80

*Due to the high

Position of Tube

1 RF 2 RF 3 RF DET AUD

RECT resistance of


Model "J" Chassis

MODEL "J" Data

TECHNICAL DATA normal voltages to be found on the LYRIC A. C. Model "J" receiver:

Filament Voltage

2.25 2.25 2.25 2.25 2.25 4.8

the circuit, these voltages

Cathode Plate Voltage Voltage

2.5 250 2.5 250 2.5 250 3.0 180'

250 360 A.C.

can only be accurately measured

The voltages tabulated above are standard under the following conditions: - 1. Line voltage 114. 2. Volume control in full on position. 3. Antenna disconnected so that no signal is received. 4. Measurements made with a 1000 ohm per volt voltmeter. 5. Except where a minus sign precedes the value, the negative

chassis pan. 6. Tested tubes are used.

Slight variation in voltages will be experienced due

Screen Voltage

70 70 70 60*

Grid Voltage

-50 with an electrostatic voltmeter.

side of the instrument is to be connected to the

to manufacturing tolerance on both the parts of the set and the tubes.

RESISTOR VALUES AND COLOR CODING

Each resistance unit in this set has a distinguishing color code to designate its resistance and capacity. It is recommended that when ordering resistors for replacement purposes, they be specified by and their position in the circuit. This will prevent any possibility of errors.

current handling colors, resistance

Resistance Limits Watts Color Code 400 ohms (Wire Wound) 390- 410 1 None

30,000 ohms 27,000- 33,000 1 White or Orange -black -orange

150,000 ohms 135,000- 165,000 1 Violet -green -orange or Brown -green -yellow

300,000 ohms 270,000- 330,000 1 Orange -green end or Orange -black -yellow

500,000 ohms 450,000- 550,000 1 Red -green -yellow or Green -black -yellow

1,000,000 ohms 750,000- 1,250,000 1 Black -red end or Brown -black -green

The color coding listed above is in accordance with R.. M. A. standards wherever possible. The first color indicates the body, the second the end and the third the band or dot.

FIXED CONDENSER VALUES AND COLOR CODING

The small condensers in this chassis are color coded and should be ordered the same

Capacitance .00005 mfd. .0001 .00015 .001 .01

Limits 000045-.000055 00009 -.00011 000135-.000165

.0009 -.0011

.009 -.011

way as resistors. Color Code Grey Dot Purple Dot Yellow Dot Blue Dot None

Diagrams show the connections of the various tone control and by-pass condenser blocks. The electrolytic condensers may be distinguished by the diameters of their cans. The 16 mfd. unit is in a 21" container while the 8 mfd. unit is in a 1%" container.

Aux. By -Pass Condenser Y -1276-R. One Side Each Section to Can.

Tone Control Condenser Y -1279-R. One Side Each Section to Central Lug.



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TECHNICAL DATA.

resistors used in these chassis are color coded in accordance with the R.M.A. code.

Resistance Color Capacity Tonrance Part No. 300 ohms Orange -black -brown 1/3 watt 10% 14-1773

2,000 ohms Red -black -red 1/3 watt 10% 14-1806 3,000 ohms Orange -black -red 1 watt 10% 14-1498 5,000 ohms Green -black -red 1/3 watt 10% 14-1600 6,000 ohms Blue -black -red 1/3 watt 10% 14-1502

10,000 ohms Brown -black -orange 1/3 watt 10% 14-1599 15,000 ohms Brown -green -orange 3 watt 10% 14-1745 30,000 ohms Orange -black -grange 1/3 watt 10% 14-1555 50,000 ohms Green -black -orange 1/3 watt 10% 14-1544

100,000 ohms Brown -black -yellow 1/3 watt 10% 14-1541 200,000 ohms Red -black -yellow 1/3 watt 10% 14-1730 300,000 ohms Orange -black -yellow 1/3 watt 10% 14-1556 500,000 ohms Green -black -yellow 1/3 watt 10% 14-1531

One-third watt resistors are approximately 3/4" long x /4" diameter.

One watt resistors are approximately 1%" long x %" diameter.

Three watt resistors are approximately 1$/4" long x diameter.

RESISTOR COLOR CODE

All resistors on LYRIC Model "S" receivers have their resistance value indicated by the RMA Color Code which is

describe] below.

A- Boor COLOR

A-Body color denotes first significant figure.

B-End color denotes second significant figure.

Condensers: Fixed mica condensers used in these receivers are color coded to indicate capacity.

Part Number 14-1186 Capacity

.0005 Mfd.

B END COLOR

C-Dot or band color denotes second significant figure.

0-Black 1-Brown 2-Red 3-Orange 4-Yellow

number of zeros following

5-Green 6-Blue 7-Violet 8-Grey 9-White

A few samples of this code are given below.

Body Color End Color Dot Color Resistance

Orange Black Yellow 300,000 ohms

Brown Green Orange 15,000 ohms Violet Green Red 9,500 ohms

Orange Black Brown 300 ohms

Color Tolerance Green, Black, Brown 10%

Paper bypass condensers used in these receivers are of the cub type and are plainly marked to show capacity

In addition each unit carries a distinguishing color dot indicating the voltage rating as listed below :

Color

Normal Working Voltages: 1. Line voltage 115 volts.

2. Volume control in full "ON" position.

3. Antenna disconnected so that no signal is received.

4. Measurements made with 1000 ohm per volt meter.

5. Except where a minus sign preceeds the reading the NEGATIVE SIDE OF THE INSTRUMENT IS TO BE CONNECTED TO THE CHASSIS PAN.

6. Tested tubes are used.

In a normal receiver all voltages will be within 5% of the values listed

Position of tube 1st Det. Oscillator 1.F. Amp. 2nd Det. Output

Type of tube

-24 -27 -51 or -35 -24 -47

Filament Voltage

2.5 2.5 2.5 2.5 2.5

Speaker Field Current -49 M.A.

Note-Screen of pentode is connected to cathode pin on socket.

* Owing to the high resistance of the circuit these voltages

Cathode Voltage

4.2 0 1.8 4.5

Voltage 200 400 600

below :- Plate Voltage

Green dot or label Red dot or label Yellow dot or label

Screen Voltage

Grid Voltage

185 70 0 70 0

195 70 0 195** 70 0 225 245 (note) =17**

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Model S-7 TECHNICAL DATA

Resistors: All carbon resistors used in these chassis are color coded in accordance with the R.M.A. code.

nominal resistance, power capacity, test limits, color marks and part numbers are listed. In the following table the

Resistance Color Capacity Tolerance Part No. 150 ohms Brown -green -brown 1/3 watt 10% 11-1760 or 11-1603

3,000 ohms Orange -black -red 2 watt 10% 11-1759 4,500 ohms Yellow -green -red 1/3 watt 10% 11-1542 7,500 ohms Violet -green -red 1/3 watt 10% 11-1642

10,000 ohms Brown -black -orange 1/3 watt 10% 11-1599 15,000 ohms Brown -green -orange 1/3 watt 10% 11-1601 15,000 ohms Brown -green -orange 2 watt 10%- 11-1745 30,000 ohms Orange -black -orange 1/3 watt 10% 11-1555

200,000 ohms Red -black -yellow 1/3 watt 10% 11-1730 300,000 ohms Orange-black-yel low 1/3 watt 10% 11-1556 500,000 ohms Green -black -yellow 1/3 watt 10% 11-1531

One- third watt resistors are approximately %" long by '4" in diameter. One watt resistors are approximately 1%" long by %" in diameter.

by 4" in diameter. Two watt resistors are approximately 1%" long

Condensers:' Fixed mica condensers used in these receivers are color coded

test limits, color code and part number are listed.

Capacity Color .00075 Mfd. Violet, Green, Brown 5 m. mfd. Black, Green, Black

Paper bypass condensers used in these receivers are of the cub each unit carries a distinguishing color dot indicating the voltage

Voltage 200 400 600

to indicate capacity. In the following table nominal capacity.

Tolerance 10% 10%

Part Number 11-1801 11-1595

type and are plainly marked to show capacity. In addition rating as listed below.

Color Green dot or label Red dot or label Yellow dot or label

Normal Working Voltages: 1. Line voltage .115 volts. 2. Volume control in full "ON" position.

3. Antenna disconnected so that no signal is received. 4. Measurements made with 1000 ohm per volt meter. 5. Except where a minus sign preceeds the reading the NEGATIVE SIDE OF THE

NECTED TO THE CHASSIS PAN.

6 Tested tubes are used.

In a normal receiver all voltages will be within 5% of the values listed below :

Position Type of Filament Cathède Plate of tube tube Voltage Voltage Voltage R.F. Amp. -51 or 35 2.50 A. C. 2.00 195.0 Lst Det. -24 2.50 A. C. 195.0 Oscillator -27 2.50 A. C. 0 70.0 I.F. Amp. -51 or 35 2.50 A. C. 2.00 195.0 2nd. Det. -24 2.50 A. C. 4.50 168,0'* Output -47 2.50 A. C. 230.0 Rectifier -80 5.00 A. C. 350.0 A. C.

Speaker field current -57 M. A. * Owing to the high resistance of the circuit these voltages can be measured accurately only


INSTRUMENT IS TO BE CON -

Screen Grid Voltage Voltage

70.0 0 70.0 0

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250.0 (note) -17.0"

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TECHNICAL DATA Resistors:

All carbon resistors used in these chassis are color coded in accordance warn the R.M.A. code. In the following table the

nominal resistance, power capacity, test limits, color marks and part numbers are listed.

Resistance Color Capacity Tolerance

150 ohms Brown -green -brown 1/3 watt 10% 2,000 ohms Red -black -red 3 watt 10%

7,500 ohms Violet -black -red 1/3 watt 10%

10,000 ohms Brown -black -orange 1/3 watt 10%

15,000 ohms Brown -green -orange 1/3 watt 10%

15,000 ohms Brown -green -orange 3 watt 10%

30,000 ohms Orange -black -orange 1/3 watt 10%

70,000 ohms Violet -black -orange 1/3 watt 10%

100,000 ohms Brown -black -yellow 1/3 watt 10%

170,000 ohms Brown -violet -yellow 1/3 watt 10%

500,000 ohms Green -black -yellow 1/3 watt 10%

One-third watt resistors are approximately %" long by 1/4" in diameter.

One watt resistors are approximately 1%" long by /" diameter.

Three watt resistors are approximately 1%" long by 4" in diameter.

Condensers: Fixed mica conuensers used in these receivers are color

test limits, color code and part numbers are listed.

Part No. 12-1603 or 12-1760 12-1777 12-1642 12-1599 12-1601 12-1745 12-1555 12-1558 12-1614 12-1734 12-1531

coded to indicate capacity. In the following table nominal capacity,

Capacity Color Tolerance Part Number 5 m. mfd. Black, Green, Black 10% 12-1595 .002 Red, Black, Red 10% 12-1625

Paper bypass condensers used in these receivers are of the cub type and are plainly marked to show capacity.

each unit carries a distinguishing color dot indicating the voltage rating as listed below.

Voltage Color 200 Greed dot or label 400 Red dot or label 600 Yellow dot or label

Part numbers for these units are given on the schematic diagram at the end of the manual.

Normal Working Voltages:'

t . Lane voltage 115 volts.

2. Volume control in full "On" position.

3. Antenna disconnected so that no signal is received.

4. Measurements made with 1000 ohm per volt meter.

5. Except where a minus sign preceeds the reading the NEGATIVE SIDE OF THE INSTRUMENT NECTED TO THE CHASSIS PAN.

In addition

IS TO BE CON -

6 Tested tubes are used.

In a normal receiver all voltages will be within 5% of the values listed below:-

Position Type of Filament Cathode Plate Screen Grid

of tube tube Voltage Voltage Voltage Voltage Voltage

R.F. Amp., -51 or -35 2.5 A. C. 2.1 200 70 0

1st Det. -24 2.5 A. C. 205 70 c

Oscillator -27 2.5 A. C. 0 70 70 0

I.F. Amp. -51 or -35 2.5 A. C. 2.1 200

2nd Det. -24 2.5 A. C. 10 125 250 (note) -17.0'

Output -47 2.5 A. C.

Speaker field current -91 M.A.


**Owing to the high resistance of the circuit these voltages can be measured accurately only with an electrostatic voltmeter.



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0 L z

vee1 (b)32006N0

,11111,'111111.1 SA.

ÿ " C=evvv.. W éë888"'''

-1

[ Óa Ib a

ri

a .i ri

.i

..

r

i¡9......e.: :;° - r .viññ ,

" r:

q°i ' .o.

! ,!

1 1 1 1 1 1

«

a 9'!"102 ..... a O OO

.oi a 2'1

t

;SSBR$e.

° 2222222:2 4j4 e4444.;

R8$8 '0 i ñ a

w N

ttyy N Vf q w r

N II r N N

II w

ª ,: , ::ári'dK zlrt

b3eeeááZa$ 3[E

9 -

Z o 4

O wo O 00


PAGE 1-10 AMRAD

MODEL Bel -Canto 81 Condenser Data

T043.íRRCJ/ pro

AMRAD CORPORATION

C+ .51

Roo

Gers..

NTO4N,R4f/C.i RN KN 2 MVO..wWAN4.

OTorwr knot /irm.wwt4+> e.ur

T. or$3

.rau i / c y

Oro r0. diC.ur. 44C

BY-PASS BLOCK CONDENSER, NO. 8113

"Lug Terminal" Style. This block contains Fixed Condensers, C3, C.4., CB,

C7, C9. The different units are indicated, with their connections to their respective circuits.

4 C3

O \ -a

Tb ,P9 tar ARC °/

áLl/E TO R. f. CRTNODES

13LRCIf TO GROUND

GRFEN TO CfITN00E /erÌi(/D/0 b/ R 4 blIZZOM

- ljhTOJQlS,yc,gNOStVER CoppERON.2wRFT F+r,c+++

- - YELLOW TO lPid, (f 53 :2211=3

YELLOW To IPkC. roc If

BY-PASS BLOCK CONDENSER, NO. 8113

"Wire Terminal" Style. This block contains the same, units as does the No. 8113 "Lug Terminal" Style. To test for capacity, opens or shorts, it is necessary to _disconnect at least one terminal of the unit from the circuit.


ARGUS PAGE 1-1

LON` SNORT ANT. ANT,

UÌ e

AR GUS

8125

199

ARGUS RADIO CORP.

199

POWER-RHEO

199

SENS ITI V ITY

ooO25 MF 199

2MF

199 112

A

w n

100 ÑP FUSE OHMj e

110-VoLT A.C.e

011á4e

1 LOUD S kR -

12 11 t0 a -

./1 MF

b A,¡

-.-1;71-

.1A

L

588-_ßBPS 5. MF d

T


PAGE 1-2 ARGUS

LENGHT-CF-CABLE

42

.T

ARGUS RADIO CORP.

. 19

HEIGNT-WITHTUBES-iN -PLACEfROM- BOTTOM-OF-6ASE-T0-10P-OF-TUBE 6j('

f8 / RHEOSTAT COVER t . `

.

.

Q ¡ SPEAKER

IgRfANT REp LOÑG./!WT ® OO

010-R

Q 9-R 0 199 0

OBR 210 0 0`00

O o O 01R \O o O O

O6R O 6- O

O5R. O

0 4-R

O3R

O6LANN

r1`

,_ O

o O 2

I ¡, I!IIII

I i 1tliU

Ò A

9 0

O

O O

O

M 0 r-, .

Vh4.

O B

O

O

N rI

9

°O O 3o

PHONOGRAPH

0 0

O O

99 o O O O

G 0 109 O OoO o 0

O O CTM

O

O 4M

OSCILLATION -ADJUST

DCREW

G 4 e or

3!1

-LAMP o

=- POWER 2

DIALLAH_ 01-R ÀL

5 SiTIV11Y¡ MODULATION ,NDicATOR -(-- .

1

1

O 0

ELECTROLYTIC

CONDENSER

o o o o

O 0 0 0 O

O O O o O 0 0}0 0 0 010

216-B 216.5 o o

POWER

TRANSFORMER

R

t0

9

8

7 L R Cr.- G C" 5 r1

OQ ...:

POWER -UNIT 13'

Inside view of ARGUS ELECTRIC RADIO RECEIVER, Model B195,

TWO-PIECE CHASSIS. Diagram shows location of connecting cables.


A.K. PAGE 1-1

o

ó X u

Y o

ATWATER KENT MFG. CO.

M

ó

I

MODEL 10 MODEL 10-B MODEL 12

10---:--y

c0

fut,

v

r V

cO


PAGE 1-2 A. -K.

MODEL 19 MODEL 20 # 7570 MODEL 20 # 4640

,.. ... ...

L _

A I .


6

J

_ .av

MODEL 10 SET No. 4660.

.A.I ww

.RMf

T

19 (Batt.)

CX301A a

CX.?00A os

CX-301A CX112A CX-301A CX301A

o o o o ht Det. 1st 2n5 B.F. A F A.F.

.0002f /If

rf ö

T D

aE .00`.-

DAo

MODEL 20 COMPACT SET No. 7570. WRING DIAGRAM.

(.mall 0116 A/

0 (5-j 1

.an, T

;_ N6H i(i q O s 7

e .

-4

MODEL. 20 SET No. 4640. 20 (Batt.)

CX-301A w

CX-300A or

CX-301A CX301A CX-112A CX-301A CX3O1A

o O O o O 1st 2ad Dd. 1st 2n1

B.F B.F. A.F A.F

This tube is a CR -371A in Model 20 compact.


A. -K. PAGE 1-3

MODEL 20 # 7960 MODEL 21 # 7760 ATWATER KENT MFG. CO.

MIu /4f.K2R MIMI( L.IM 7/ILI

FF f / R1Ji1FIMC/ f/ R/ I> f

RR

1,712/ }ylwP!

M

1,/

BROW

M BBD

21

es- ~feu Art CIAVL AIM /M11a.27fR RMI7Rf .-H1RRe/

MODKL 90 COMPACT SET No. 7900. WIRING DIAGRAM.

IBRtM TBLLOw

-c 6RBEN-TBLLO w TRACER

.4 BL1CB -7jk warp' I

1

MODEL 21 DRY CELL SET No. 7780.

(Batt.)

C-299 C-299 C-299 C-299 C.299

1st 2nd Pet. 1st 2nd R.F. R F. A. F. A.F -

Model 20 Comp. (1925)

DET 1 AP j AF

0 0 0 1 RF 2 RF '01A '01A '01A 0 0 OR

'01A '01A '12A OR

'7I A

FRONT


PAGE 1-4 A -K.

MODEL 30 MODEL 32 MODEL 35 MODEL 48

32

'map AAYAHtt

w


rfr traMf aaaIAN ,iMr

r-//!/ MOO

Md. WeirMMft

sie Core. 0.147

rI BID

Oraaf YELLOW

e ORION -YELLOW

rI

tirlAML AVTt ~TM 'AP JAW I11r/tiMT .r!fYIMT .K/R711Nnr

TRACIB

BROWN / BLACK !WHTTf

WIRING DIAGRAM or MODELS 30, 35 AND 48. (In Model 35, one rheostat controls the three R.F. filaments and a fixed resistance is connected in series with the detector and two A.F. filaments.)

ore n ! rar..aa !

rI !r I r.warl.v,pW r.aa.I.TMelt!

r.a' Ca+wrirar! «.. AArr!!+

An, row -.r i

irlas lwaawrA

.i BROWN

RED

ry YELLOW

ORE%Y -TEL LOW TRACER

a, rv..rAVA !Wlir Nlr.yrraf MAI AVOW, aUNr NI/I k WIRING DIAGRAM OF MODEL 32.

(Batt.)

Ci.' -301A CX-301A CX-301A CX-301A

O O Ca O lit 2nd 3rd 4th R.F. R.F. R.F. R.F.

CX-301A or

CX-300A or

CX-112A

O Dot.

CX 371A or

CX-301A CX-112A

O 1st 2nd A.F. A.F.

30, 33, 35, 48, 49

PI.ACK '4 WHITE

(Batt.)

CX-301A CX-301A CX301A

O ® O 1st 2nd 3rd

R.F. R.F. R.F.

CX-301A Or

CX-300A CX-371A N Or

CX-112A CX-301A CX-112A

O O O Dot. lft 2id

A. F. A. F.


A -K. PAGE 1-5

MODEL 33 MODEL 36 Early MODEL 36 Late MODEL 49


PAGE 1-6 A. -K.

ATWATER KENT MFG. CO. MODEL 36

Power Pack

NOIE DISREGARD MARKINGS MOULDED ON raoNT OF

IER.aAAL PANEL.

TrIE [ 1LIDE 5oC T.

T

ARNRM EMB SFO

LY.ER

DING.

E .

awR.CDING

E -r^ Q 0; 1

. rEj 9 ®.

J

Yr

m HIGH VOLTAGE NDING.

C

m

n

o K

COPPLE.TE UNII gstt

ISr A.F PLAIE RES BYPASS CONDENSER.

rr T

SPEAKER (YOKE.

1 3

Fl -GREEN TR ECA

CINfSf NSF R

055E MRLY. 2,0 MI

'IIZ fill_ T? 11 Lei

4.omf d J5 -OS

1700

FILTER -COOKE ASSEMBLY.

3 3 tl t

o nt -

o o

B AG

TELO

w

1100 w

3

o 1

ó

v CABLE

Schematic

aE.rarAC,F FON P UG

NNLICif Cr

IG TOGGLE S,riCN.

E-151 A F rILwMENT SHUNt MIENTIO-

MfTER

o

o R - l51 c,L

uPPLY

/ 3

e-, o

O e e w-eg

.8 DE T. GROUND

IST AF `NO

UPP A F'

LV. S

TE RrvI INAL RnNEL /

BN:K10. on ORE vEL.TR

,Jl"ÍÑV K,

Lli,q, ser IIE }vvLv

DET. FIL. SERIES r ,rD RCS -i 0.3 w 4-/3313

Y

J WIRE-_ .05 w t/3l2e ' RE SIST ANC

ZO w 4Q939

Model "Y" Power Units below Serial No. 260,000 (Used -with Model 36 Sets below Serial No. 2,610,000)

ti

S 3

IR1

O

CO

o

O I :Di ) éí í P?!

RECT. TUBE SOCKET

I re '9'1L

O 1,:0j 3i0}/

BIACR M16M VOLTAGE G.

1

PANEL ASSEMBLY

Ir DET.L.Mn11DING.....

BIACFI

co, PRIMARY 1

IO RED

4- -- - TRANSFORMER ASSEMBLY

2.. A.F. FIL:. hINOING I \

REE T. FIL. WINO,

2.F -1ST A. F FIL. WINDING.

t Y Y t

O, A

R.F.-!sr A.F FIL. SUPPLY

4P W

J, +B2N.4.Fi{1ßÉ BND J LL1

® .4E ¡ e

/ ñ +81_AF +B OtTo aia a'44:0' O a 5 E A A 1 ti A

-t J

C YELLOW

r i ¡

FILTER I CONO.,

RED

4.0

-+- GREEN-YEL:)

i I

YELLOM-r GREEN

YELLOW

i

r

W S

e

.44

Ñ

YEL?R WHITE

fe, WY J o

_

Betrr

-1

o

LYE LLOEv-6REEN

I YïLLO1E-BWCR

CONDENSER ASSEMBLY ¡ CHOKE ASSEMBLY

r...r t..-1 9704 - ---- -- 110(JOLT SUPPLY CAREE AND PLUG-,

Model "Y" Power Units Above Serial No. 260,000 (Used -with Model 36 Sets above Serial No. 2,610,000)

ON A F FIL SNUNT RE iSrANCE.

DE ECTO0 FIL SHONE RESKS TANG E.

8A

AD:C.}: JOCiR.L


A. -K. PAGE 1-7

z

co M

a ñ

Ñ 0 < X r.

Oö Ñ P1 t 1 X VCe u

^` Ory c x = 0z 0=

-

ó:

[ nnrl:no i 4

[ . o MÌM173Mp1

n ove

ej.:11'.1'.. ijC mmsócmal .

'

' t:44.4,;.;JI:mmVmoo Ñc4i

fd 1 1 1 . 1 1 1

°d roi.oi.oi I.oiñl . E >

ao o ral el

Io N Io ral ral

1p 1

r-1' 1

N Ñ ' r rlriNriVe ON+9 e)

.

ta, er) rt`t- N riri

M.)N It-rn rl 1 rl

.d '

nM) rl el

:N 10101 MN rl p

O

a9ç I

1L GI

1>:1>:1,y

ó q IA á

po- :.4 V.mIÑ,,t

w Pv d

:Ed ObnoP"GNO NNNN[fo NNNNr1N

Y -i -

Power pack reference on page 1-8.


PAGE 1-8 A.K.

MODEL 37 Power Pack Early and Late

Data

Schematic

RESISTORS

Detector plate

1st a -f plate

R -f and 1st a -f bias

2nd a -f bias

Filament shunt

Speaker choke

Filter chokes

CONDENSERS


Early

100000 ohms #8919 Green paint 12500 ohms #15941 red See late.

1100 ohms # 9691 eliptical 1750 ohms

# 9692 eliptical 20 ohms # 9434 500 ohms

1600 ohms total

See schematic

Late

65000 ohms # 15592 1 watt black or bl. and gr. 12500 ohms # 15941 red or purple and yellow or red.

625 ohms # 13128 eliptical

2200 ohms if 13289 eliptical

20 ohms # 9434 flat, wire 500 ohms

1600 ohms total

See Schematic. Condenser unit

is # 13315. Also houses transformer.

Special Note. A 1. mfd condenser is also contained in the transformer -condenser

housing but this condenser is not connected in the model 37 power pack.

RED-

TOGGLE SW

W J Q Sl

v

O

cr

£

U J

-

C, 2MO A.F. FIL. WINDING.

GREEN-YEL. TR.

R.F.-Irr Fit-. WINOIN6. BLACK.<

CO DET. FIL. CU WINDING.

YELLOW-BIACKTR

BLACK / p Ú

p

I F2

RECTIFIER FIL. WINDING.

11

za w ( 4-zno A.F. Ft.SufiPuf11 ,

2NoA.l' I BIAS

RES.r

RF. -In I A.F. BIAS t

SPEAKER RETURN.

I --# R.F.-IrrA.FFIL.SIIPPY?

I DET. FIL. SUPPLY 0 Lv i

P1 _ ',art VEL.

R.F.-IsT A.F. W HITE RECTIFYING BY-PASS

tB1SrA.l TUBE.

T CONDENSER."' DET. BY-PASS

lS CONDENSER i REDi /20.00

POWER TRANSFORMER

FS in{1_ II.O .S«_FS FILTER +B DET. N CODENSERSf

+B 2noA.F.

TB R.F.

iOO,DOO w

-GREEN-YEL. , o 4-

0 RED -BOCK.

FILTER CHOKES

DIRGRAM OF POWER

1:

3

o o tr)

BLAG K

ç-YELLOW-BIAGK TR.

PEA K E R CrIOKE

UNIT IN MODELS 37 AND 38


A -K. PAGE 1-9


40, 42, 52 (A.C.)

Cx380

C-327 CX326 CX371R

CX-326 CX326 CX-326 O O O INK lit 2nd O O o A.F. A.F.

1st 2nd 3rd R.". R. F. R. F.

ÿ MKnTJ w..-.

R.TER nof.s SKV.ER O -RE.

I» -NMI. 41.

MODEL 40 MODEL 42 MODEL 62

111, AA /....p.f.

i..R`fir.e. YeV.ER RETURN.

tTwtf. U Rl..tiltf.

41114t=1.2.

P%1- wwn.n.

.2. A.

k+.w..c >NM.,. o ...aw ..r, . w.r -S. ., N,-. .t. SOnf Y To. TTK COCYI. il.M IS *D urger - -R Y arr. w.Tf TwT COLO.S AS wOM ST.r1MR.IZEO COM[S.efO ..w.. T. CO.OwS or -T-CwOLr ADM.

AT W ATER-KENT-Model 40 Line Voltage 115

T... ,«T- 0,T... ..T te K..rTO...n

...... Ia.. .rsT Or fn T PIMA In T.Ta

rwn .w VOLT.CMNCT. O mom. nm Yf» Pun Y r.r....

LT.Y f ,Xgg iet.R.p. 1.3 345 1.1T1.38 TO - 4.8 8.4 33 r 226 2nd.8..2. 1.3 "1-4-5- 1.25 138 10 - 4.8 8.4 3..¢¢

226 3e.8.7. 1.3 145 1.25 138 10 - 4.2 8.0 5.8 227 Detector 2.25 157 2.0 el - - 2.2 2.2 0..0p

226 1et.1.3. 1.3 172 1.26 130 8 - 3.5 7.6 3.8 , T7i1 213d.A- 7. 4.2 210 4.1 148 32 14.4 13.4 Z,.O , 280 Reotif;er - - 4.5 - - - 18.5 - -

ATWATER-KENT--Models 42-44-52-56 Line Voltage 115 -4th R. F. -Tube in Model 44 Only

Twee .. Tema

r. -T -w op T.r

root ..T .-A raM - OOYT Or ftV

MOO - V 60,11.711 TqT

226 226 zre 227

lat.R.p. 2nd.R.z 3rd.R.i: pet.

1.55 1.55 1..5 2.25

164 164 156 174

1.4 1.4 1.4 2.1.5

152 152 152

38 226 1731

let.A.2. 1.5 192 4 '132

280 Rectifier

1.4

4:8

150 162

KH.Ar PLATS

.T ...wee

TIM?

ram* Y -.M 3.T 12 5.4 9.1

12 5.7 9.2 3.5 11.5 9 5.7

0 2.3 3 0.0 1.05 5.0 8.7 3.7

15.0 16.0 1.0 18.0


PAGE 1-10 A. -K.

r MODEL 40,42,44,52

Power Unit Layout

MODEL 40,45 2nd Type Power Unit

Schematio


w

BLACK. CONNECT TO REGULATING RES. IN MODELS 42,4-4-, 52.

(BROUGHT THRU ANGLE) W CC

fìiUE-RE D TR, (OR BIACK)

s

s

BLUE (OR BIACK)

GREEN -YE L. RED-RIACK

Ir F-

z W

A w d

BLACK

SPEAKER RETURN

R.F.-IST A.F. FIL. SUPPLY.

DET. FIL. SUPPLY.

BFtOWN-)e AA

LL- WHITEJ yy

44- +g R. F.

+B 2.ND A.

+g! 1ST A. DET

YEL.-)

BLACK -RED TR/

BLUE (OR RED)

e

TO TOGGLE SWITCH POWER UNIT IN MODELS 40, 42, 44 AND 52, SHOWING CONNECTIONS FROM SEALED- CONTAINER TO PANEL ASSEMBLY,

RECTIFIER SOCKET AND REGULATING RESISTANCE

This view shows the approximate posifion of leads from sealed container. In Models 42 44 and 52, a hole is cut in the rectiller-socket motmting

angle and the two black leads are brought up through the hole and connect to the regulating resistance, which is mounted upright at the felt- hatul

cad of the sealed container.

täI

m

GREEN-l'EL

N Wp

m

RED --GREEN

:-+ J

SOCKET FOR RECTIFIEF TUBE

REGULATING RESISTOR

BLACK-WHITE TR

Y 1 OW Y

O, 29 1~ 10, 1< > I re -Ri- +B R.F

i-..;á I Ó9.-sÿ11 +B, tNDAF 1=49.- IdÑ`: 1 L. in II.. !___4,4+B. IST AF

F +p. D T

''rQ, ;4i

BROWN OR-+

BLACK

BROWN

WHITE

BLACK T)

et u

YE

TO SPEAKER CHOKE

GREEN

)

LACK-RED

BLUE

110 -VOLT CABLE AND PLUG

'{Pi.i:: .:d::'. Y{:ti ::i,S;s! ,ï.::::: %s::'Y;; Y'; ,Y,Yi i Q¡tii,1,

CONDENSER ASSEMBLY

VIEW SHOWING CONNECTIONS IN 2ND TYPE OF POWER UNIT FOR MODELS 40 AND 45.

This view shows the panel assembly moved to left of normal position. The regulating resistor is not used in these models.


A. -K. PAGE 1-11


Hro ltt_1'y'e .311 H M-

bVT9 Ol S1]3NNO) (1 j'V T 'ON ')3S woad) i]1 031J -11)t119-

bVZd- 01 5173NNOD (VTd+ woad)

á11 31I H M -)+)li19 V+ 01 S123NNO2

(03 á3ä bd) -

7:'ON Indino 01 51i3NN02 U0 ON 1S Od 031.03dS WOa!)

'bl N33be-03b-

d

z <

3

le

0 O

R

13óa MOTTA

-011Z 3. 01 S10]NNO) (1, ON 1JV1NO_ INO0+0 bl 311HM-038

V- 01 T123NNO, (1 'ON 1701NO2 wotd!)

1C11 lhl111O 01 S113MNO2 (1 'ON 1TO11 11311II3A weed nl N33129 -14W19

d'

'4

sta3k10-038 Z p i r- Z 1

Y

N33119

n

'b1 N331í9-11 JFile

Zñ

H a W

MODEL 41 DC

31111M

Schematic

3 O j

Power pack reference on page 1-12.


PAGE 1-12 A. -K.

MODEL 41 Power Pack 3 Types

Schematic

Voltage

FIL. OER/61 M SISTOR.

Puy (N CnOna1

ere- Pere »K( (worrier

OUTPUT P1. z

NM- KR((M : O

+IC MD T INPUT

+8, R.F.-IsTA.F

+8, DETECTOR

.------------21.-- /KT(-_ O(TFC70R R sr ei-

COrDENSERS M ` COMM' N(ER.

W Ill Rc DIAatAY or LIT Tm a PoWaa Uwlr roa Mom. 41.

4112"1,,c,./

3'V Izi-313'6 + IF bo+L(3u

gq 1MÖJ]IVW 1 31M

230 E. 4) ci Q

áa a xi

dea

OUTPUT N..I (

-10V. IMIVIr

.R.F-I.+A F

S. DETECTOR

Mono DNaou ir in Tr or Porno Urn roo Noon 11

oln e r-+.- CD CD CO cN2 co m


A. -K. PAGE 1 -Th

ATWATER KENT MFG. CO. MODEL 43 Receiver

IR

-l.

THIS SYMBOL INDICATES CONNECTION TO METAL

FRAME OF SET

ANTENNA ODUPLINC TRANSFORFIEN

NOTE THE FILAMENT CONTACT SPRINGS ARE MARKED -POSITIVE' AND "NEGATIVE" ONLY TO IDENTIFY THEM FOR TESTING PURPOSES

RFT

Zfi

2R

ILF. FILAMENT AND PLATE CIRCUIT BV.PAO

CONDENSERS (AND DET CATHODE - RY-PANS CONDENSER)

3R

-- T

T f f F

T.OY /ioo y Zw

NO.» 1151.

ANT

BEEN

GRD.

SHIELDED ANT LEAD

CONTACT NO

CATHODE SERIES RESISTOR ..,-

c4-47' i roFPJNTAtTl

SoDorNO 1 AFT

Ñ j 1`V I rBL

1I

NOTAST

L 1

MACK

3

o M

00

Y2 D

Id I-

cd Us

ág lY.

2A

SET V R CONDw-1

ET G ID ODN

/ .000iS pl.

.3R.4 2001 RA MATE CIRCUII

RESISTOR

CONTACT 1 CONTACT . NO iii NO. I w

RED

r 30 tiu.r WIRING DIAGRAM Or MODEL 43 SET.

The +B, 1st A. F. cable lead is black with a red tracer.

LACK

Wiring diagram of Model 43 power pack is shown on 152

BOTTOM

o NOTE: THE FILAMENT CONTACT SPRINGS ARE MARKED «POSITIVE" AND "NEGATIVE-' ONLY TO DENTIFY THEM FOR TESTING PURPOSES.

J /\ °ANTENNA COUPLING RnT

TRANSFORMER 4:/ o

4.1*

9

o

Schematic

IY

ò Y ó

< m

o, mLL

CARiI

TAPIR

RED-GREEN TR

BLACK- GREEN TR

R.F FILAMENT AND PLATE CIRCUIT BY-PASS

CONDENSERS (AND DET. CATHODE BY-PASS CONDENSER)

CONTACT CATHODE SERIES CONTACTNO.

I I RESISTOR I NO. E

0 CONTACT

NO. 3

O

1R

0

N0. I R.F.T.

.2R

O

NO. I R.P.T.

U

NO. 3 RFT.

3R GRID LEAK

(ON TOP)

H.P. PLATE CIRCUIT RESISTOR CONTACT

NO. 4

TEST CHART VOR MODEL 43.

}

IA }

2A

Power pack reference on page 1.14.


PAGE 1-14 A. -K.

MODEL 43 Paarer Pack

Schematic

RECTIFIER TUBE

BLUR

HIGH VOLTAGE WINDING

.QQOQ000

REGULATING RESISTOR

e

3

SL/


/000 4 4 2s -k,

2o

BLACK - RED TR.

2ND A.F. GRID R.F.-I5T A.F. GRID BIAS RESISTOR BIAS RESISTOR

16b000Ó1l PRIMARY

BLACK OR

BROWN

SOCKET FOR RECTIFIER TUBE

BLUE

GREEN- YELLOW TR

BLACK TR.

POWER 'SWITCH TOGGLE SWITCH

K

53

IJ +B, 2A

Ú

GRD. a

GREEN -YELLOW TRACER 667000 w I Wafi1 TO

SIAGN'ET COIL

WHITE

Cm

+B, R.F.

PANEL ASSEMBLY

+B, r DETECTOR I e

g \+B. tm IST A.F.

IST A.F.BY.PASS CONDENSER FILTER CHOKE

O.S,r e3,0 `>/T

." - . DET.

BY-PASS CORD. ILTER

CONDENSERS

TO DIAPHRAGM (FLOATING)

COIL

V MI DI

SOCKET FOR

BLUE SPEAKER PLUG

PRIMARY SHUNT

CONDENSER

POWER TRANSFORMER

POWER SWITCH IIO-VOLT CABLE

1

O O

z 3 ó0 ?á

M D2

/000

6Q

\o.7w OUTPUT

TRANSFORMER

WIRING DIAGRAM OF POWER UNIT IN MODF.I. 43.

RED WHITE TRACER

i RED- X

GREEN TR

GREEN- YELLOW TR.

r RED

+B, M tB. R.F.

13

_-i --- - -criIImG01YZIRsY- - s-. 1

BLACK-WHITE TRACER

J BLACK- RED TR.

+B, 1ST A.F.

+B, DET

2Aa

THIS SYMBOL INDICATES CONNECTION TO METAL

FRAME OF UNIT

SOCKET FOR SPEAKER PLUG

/ BLACK-GREEN TR,

GREEN- YELLOW TR

BLACK OR BROWN

::d:1: ::::::Ii :::4:: :::::.::::: ::::.'b'.CWMKe.y'.:!i.'tWii'./VMfiti. I IO.VOLT CABLE

AND PLUG

YELLOW- BLACK TR

RED- II GREEN TR

SHOWING CONNECTIONS AND APPROXIMATE POSITION OF LEADS FROM SEALED CONTAINER IN MODEL 43 POWER UNIT. early type of power unit for Model 43, two brown leads from the primary -shunt condenser connect to the +B, 2A terminal and to the brown

P2 Aa lead respectively. In later models these connections are made internally.


A. -K. PAGE 1-15

MODEL 44 and 45

SPECIAL NOTE.


lst type power unit for Model 44 is shown on page 145. Seoond type power unit for Model 45 is shown on page 148.

TRANSFORMERS IN MODELS 44 and 45

1st a -f primary 1000 ohms # 8060 2nd a -f primary 1700 ohms fir' 7661 1st a -f secondary 7000 ohms 2nd a -f secondary 3250 ohms

41 [lW 3r41 - N

that );r,.

^ SE

,----- -.....

z s

' `1110

o r

..//-PM M OOOS9

O

11DM / 1.+ eostl

b . -- \--- \ a

Y

a

Alaans ile 134

3

?t úT

W

u

311HM3a 311HM-MJV11

.,n 07,

Ald en '114 e V 151 -3 tl

4 4.!

Alea:l5 li S.J. N33tl9-435

Y

51 M0113A-53359 S.J. 535111--435 ,--9

3í11a.

l3A

Si a35-3n1e

1-

% 0l

Power unit references on pages 1-9 and 1.10.


PAGE 1-16 A. -K.

MODEL 50 ATWATER KENT MFG. CO.

Model 50

CONDENSERS

Detector grid .00025 mfd # Detector phone .002 lafd # Plate bypass .3 mfd #

RESISTORS

Detector grid leak 2.0

1st r -f plate 12500

A -f filament 1.5 Detector rheostat 20

R -f rheostat 5

R -f grid leak 2.0

CHOKES

A -f plate 35

TRANSFORMERS

1st a -f primary 1000 let a -f secondary 7000 2nd a -f primary 1400 2nd a -f secondary 7000

8593 8590 14902

500 volts 500 volts 450 volts

MODEL 50

megs # 15892 (8195) 1 watt ohms # 8796 yellow glass ohms # 8627 black covered, flexible ohms # 8310 ohms # 8599 megs # 15892 (8195) 1 watt

50

ohms # 8;32

ohms # 8650 ohms ohms # 8940 ohms

PNOMF COMO

.c.

Rf

w

LACK

CX-371A or

CX-112A CX-301A

0 0 2rw ]st A. F. A. F.

CX-301A or

CX-300A or

CX-112A CX-301A CX-301A

O 0 0 Det. 4th 3rd

WW R. F.

CX-301A CX-3014

0 0 let 2nd R.F. R. F.

Bgld tosi

- N(,TE.-$'._ack lead (-F) is grounded-not shown in diagram

Most of Model 50 Sets also hase an R.F. choke

between plate OC second audio tube and speaker past No. I.

WIRING DIAGRAM OF MODEL 50.


A. -K. PAGE 1-17

Tube


VOLTAGE TABLE Filament Plate Grid

Early Late Early Late Early late

MODEL 55, 55-C Early

Screen Early late

R -F 2.2 2.2 160 160 2.8 3.7 78 96 Det 2.2 2.2 101 LOI II. II. 1st A- F 2. 2 2.2 64 69 1.8* 2.8* 2nd A -F2.2 2.2 213 230 39. 46 Rec 4.5 4.5

* Measured voltage, not operating voltage. Line voltage IIO V.

I>

'.900000, "'"1 '00900of º

., ,.... .. a,. o

Lig

OR

.n. fa

- 0000

3

f<1

Q Q

a- N -

//0// //n/n/n -.01(ky0C1C1: 711 ;1

°;! . .,.

-e 1 i

< ` f17 'á - -

N

..,...<.f. -.)4P/J ..+eooóo/ in oSo/

\º » o00.S71' i`R

=l 0_0 (2.9 . '000000`

N

á

4

; °.000000 i"

00000

13 00¢ 1? -4 I

sn 000.99

000beg/

ll---

,/b/d re 09/

3

ó

0

£ f+1

0

3

ei cd

-P 43 ci Si

umi O0 M0 q0 00 q0 2 0 m m 0 0 0 0 0 0

oAo 1-4 a o

o

U 4l U) 1AOMM ,-i W f

NNN N is m

40 i Ñ DO

l r1 .ri41

á a

W Cg m

43° el m m ó

.Ha L.4,o

.-i I -i m m m CO ri eri :r 1

r=4 i. r-1AriW f=, Gy


PAGE 1-18 A. -K.

MODEL 55, 55-C Earl, ATWATER KENT MFG. CO.

o.. '

.1

OP

O1Y3.00 «IS unlM 14m, .01141

M0r7o¡M11M,

.L.2131

eAr

ie

1NI

à

.I

CO CO t9 cOcOcO

1A11)In

t7 M,

nl.

0111

6.o1

,,C^M^ COcv^^

cv sEr

/W W W . N1CuCVN ti tn LA U) U)ri

ri r4 `3 * ̀ b á°°

r-1 r-1 ri r4 ..

anl

4 I 1' d7. e

n,

.MOM.

vllY

11111M$11/1. WW1!

111'0111'N11M'M2Y1.11

off

.! WIN

the

110.33 3110331e

i

t

e '1pYa :,.

AT k

M0131.Itl . ' Y

111-111316'M11M-MIYI.

.'O

ON 41.3113 WWIIM M 30'11 Ma141

111

01.02*' MIMYO..MYM1 MIMOS

A

U

i1


A. -Ih. PAGE 1-19

MODEL 55 and 56-C Late

Schematic)

Chassis

F...,.. 1R

,.,"c,Ec. M.:i ....

ZcR°:ó:;:i:° I..

r;:;,,,1°- .: c ó:

° 1A

c...,,...,:o..[: ..2A

I ¡o "\I1f- ' `000---

(rv/Q \\

C>

¡- `L b ¡- " %yá - O `1 ÑM fe, `1 IT b 9 à Ó o I. Q^f

,, o .I..., O z.:, K o 0 \ 0

0a. 0 p \A ó 1,.."2,,, , U ..K. r o iH\., úti

K..aLPN -' LCE...° = B. sn, / 2A.

= , 2n.I.,.,' : IÎ A let..., R°. ...° rI :..y ... ö ref .°R°L,s st ó= j A 1 3

a = 1, ., v o ; 3 3\ o

1.. F. N.n c YI. 0 Del

«MU Q' 0 ." °... ¡ t. 0 e

E.NM K.,. O 0 4% w

.O + ` N. I : M 4 A NNIn ' 3 SS M,.. F., ,1`tou,

6000 uA ..e..° N

SPEAKER

mairroie RoLOT .met meet

ReetTOR

BLEEDER RESISTOR

No 2

POWER TRANSFORMER ASSEMBLY

N.. 2 R. F. T.

R. F.

SpvaKcs- f,e(cl 1 v o w

DIAGRAM OP LATER -TYPE MODEL 55 AND 55-C.

./44 /mi .3 YMf

400 Vo¡is /4.° V

2,00E A. F. BIAS N J__ RESISTORS

BLEEDER RESISTOR

FI LTER_C NO CE ASSEMBLY

, A F.

BIAS RESISTOR UNDERNEATH

o R.F.C. Ne. 2

DEf_ BIAS RESISTOR

T FILTER

CONDENSER ASSEMBLY

BET, PLATE R. F. CHOKE

A. F. TRANSFORMER ASSEMBLY

L SHUNT RESISTOR

Condenser references on pages 1-17 and 1-18.


PAGE 1-20 A. -K.

MODEL 55-F and 55 -FC ATWATER KENT MFG. CO. Early

VOLTAGE TABLE Tube Filament Plate Grid

R-F 2.2 160 3.7

Det 2.2 101 II.

1st A-F 2.2 69 2.8* 2rrd A-F 4.5 174 41.

Rect. 4.5 * Measured voltage, not operating voltage.

000000`

Mooi/ :iTR

erne

3 O V

p O o

000113

R 4

.º9949º/

s

4

..o_.

º0000º/"i°

00

4

Iu

3

a

Ci

V Ci

E

0,09/ 3t

0 >

It' 0

Screen

96

Line voltage 110 V.

02 a 4> 43

CO CO 00 P P

0 0 0 0 0 P P P MO

0 0Q0

r-1

ri H d1 CMOMCO NCON M N U]

CN2 N N rl in ri C2 C2

CO

izt LO

e b 4aea tió

r -f M O O

0 f, 1

d g

ilI I %

43 ó g g

m .d.-...

0 N M v v d so ,-. -.

-i Ó 0 L. ..ei rl r-1

ò s e 43 .-1

sd

rl 0 O Ó Ó m c.d ® +>

.2 .-Ñ m m 0d ó mmó mb«g le i p.o

-P .0 A 0 00

.tg 00000 óó2 mmó

Rq Ú1 óm G O b 000agaj1 O d o

0 e d e M O

U O O à q p e-1

po - f p L-00 $4

W5 g ri r Ì .-1

14 I I 44z o wq`00 0000w

is -IO dci g --11

i-1 í-1 + W

>I El GaC.WÁ

IAGRAM OP EARLY -TYPE MODEL 55-F AND 55 -F -C.


A. -K. PAGE 1-21

ATWATER KENT MFG. CO. MODEL 55-F and 55(4C

Chassis Early

r4 i<

bd- 10303A03 03tl)

30101030 10011 10114

111'MOV10-H11M'03tl

n

3

o o

1:1l'M2V10 0113A

'03Il'H11M'M0010

3

o

010

e

e 5

5

00101034 tl303319

II IIIAIIIIfi 101111111111 n lll ll' O1CIS3Il SVi0I/I

01130 b 'V Vu! pItl110111111111YW11110,N I I

3

r» 050/2 2-4

11 33 1111odi s1111s, 31,111101 I

IIItlÌIIW1117Ì11111WWIGIIilIIII

I

Ill' "13A-H11M'N33tl0

03tl3A00'611tl 0031 N11H1

nA

o

I


PAGE 1-22 A. -h.

FILTER CONDENSER CONNECTIONS. See data pertaining thereto on page 162 Bypass oondenser specifications are shown below.

CODDIfflele

3 o o

.9f -....

DUD INC441.0.11

DC/ ILITA 11131111/0111

Men

850 w a. . 5<00o w

Ty<<.LPe 6000w THICK CLACK SI Corion eo,000Lr 1500 w o

no I \ ..w

300 ER

6a bb 6ò o M [-Jo GiÒ óö0 o:N.,L- -i.. - T' + .. - . .R...M..

Qó >......, f 1.10117 C1MOT LIPPIT

l.I IC>

3 1R 4-O 42'...t.,-zI: oR

.. B..M. « \

° 2/A\

g^NL"I°'\ 1 Ów

RECTIFIER eta

OLINE BH-PASS

NozR FT

R. F. C. No,

BLEEDER RESISTOR

No,z


/4 0 w 4000 w 850 w

Luc >E.. \

BLEEDER RESISTOR

No. 1

R. DET I

FIL. SHUNT RESISTOR F. BY

LTER.CHORL ASSEMBLY

o A F. BIAS RESISTOR

UNDERNEATH

LEAD v", WHITE

No. SR.F.T

R. F. C. Noi

DET. BIAS RESISTOR

FILTER CONDENSER ASSEMBLY

DIAGRAM OP LATER -TYPE MODEL 55-F AND 55 -F -C.

DET. PLATE R. F. CHORE

A. P. TRANSFORMER ASSEEISLY

Condenser reference on page 1-20.


A. -K. PAGE 1-23

ATWATER KENT MFG. CO.MODEL 55.4 and 55 -FC Late Chassis

ra- o

1..H3 Q¡ I

(C 03v3,03 038'

A0 38 1H9,1 103iA

038 H1IM-H3.1

;le

30j 21' ) 001-H 0113A

U1'03tl-H11M'M00i

11)

p

D

e 3019-H1IM 03tl

tlO1S1S3tl b3111í -a y .I

o

ro _<#z5

N33tl0 iHl

8

01m®1mmim111nA1, 09931:I901III ell, '3 'V 0!! e

r-

tl019183tl ' II,I

lìl"l)A-H11M-N33tl0

]3A00 Y0 CAI OIHL

tl

lb

%10 _


PAGE 1-24 A. -K.

ATWATER KENT MFG. CO. MODEL 60 and 60..0

VOLTAGE DATA FOR MODELS 60 and 60-C (1st and 2nd Types)

Line vol tage 110. 120 volt line is 10 percent higher. Tube Filament Plate Grid Screen

R-F(Ist) 2.2 160 7.3 119 119 R-F (2nd -3rd) 2.2 160 3.7 83 De t. 2.2 101 II.

A-F (Ist) 2.2 69 1.8* A-F (2nd) 2.2 230 44. Rect. 4.5

* Measured, not actual operating voltage.

Line Tube

VOLTAGE DATA FOR MODEL 60 and 60-C (3rd Type)

voltage 110. Volume control at minimum. Filament

R-F 2.3 Def. 2.3 A-F ( I st) 2.3 A-6 ( 2nd) 2.3

Plate Grid

170 119 73

224

Screen

I 42

* Local distance switch at distance ** Measured. not actual operating voltage. *** If 2nd A-F bias resistor #1 Is open, bias will be about 85 v.

Checking Sensitivity of Set

When checking the sensitivity of the set, it is necessary to use an oscillator, and a meter to indicate maximum output volume.

A local oscillator is necessary to ensure constancy of signal strength; signals from broadcast stations are not sufficiently constant for this work.

An output meter is necessary to ensure a reliable indi- cation of output volume; the ear is not reliable 'enough for this purpose.

The oscillator feeds a weak signal into the receiver. The signal is amplified in the receiver and produces a reading on a meter which is connected to the output of the set. This meter indicates the strength of output volume. The reading on the output meter is greatest when all the tuned circuits

in the set are adjusted to the same frequency as the oscillator signal. r. Oscillator.

The oscillator must provide modulated R. F. signals at four different frequencies in the broadcast range. These four frequencies should correspond to dial settings of 5, 45, 65 and 95 on the dial of a 3rd type Model 6o -C which has the original factory synchronism.

Each of the four R. F. oscillators should have an adjustable pick-up so that the strength of each oscillator may be controlled independently of the other three. 2. Output Measuring Circuit.

The output measuring circuit is shown and described

Adjusting Trimmer Condensers Connect the common pick-up lead from the four R. F. oscillators to one end of a No. 8112 condenser. Connect the other end of this condenser to the Long -Antenna post. Connect the oscillator container to the Ground 5. post.

. Put plug "A" of the output measuring circuit in the speaker -plug socket on the set. Plug an F-4 type speaker in socket "B." Throw switch "D ' to the right. Put all tubes in the set; power switch on; volume control at maximum; local -distance switch at distance. Break away' the sealing wax on the trimmer -condenser screws

amount of pick-up from the ist oscillator to secure a reading of about 20 on the output meter.

With a screw -driver, turn the pressure screw of the 4th trimmer condenser one way or the other, as necessary, to the point where the reading on the output meter is greatest. Repeat this process on the 3rd trimmer, then on the 2nd, and finally on the ist. Reduce the pick-up from the 1st oscillator if necessary in order to keep the needle of the galvanometer near the centre of its scale.

This adjustment of the trimmer -condenser screws is Tune set exactly to 5 on dial. Reduce or increase the termed the CORRECT POSITION.


A. -K. PAGE 1-25

ATWATER KENT MFG. CO. MODEL so and so -c Early

Schematic

FILTER CONDENSER CONNECTIONS. See chassis layout Data

The numbers listed as connections are marked upon the filter condenser

unit and shown within the circle designating the condenser unit on the chassis layout.

1st a -f filter .5 mfd Detector filter 1. mfd 1st a -f bias

Filter 41 Filter #2 Filter 03

Q

6bó000b lF

3

©

3 o o ro

,,.o ººº 0000,,,,a

I

0+tlööl/

o --

ID

.5 mfd 2.0 mfd 2.3 mfd 2.3 mfd

a

4Z,47U° 0'0 £

33 0,0

connected connected connected connected connected connected

m ,.â :':°. _-m O.Ç o / m 0 00001

^000;$f 110.5

ekodnoz 13.2

°,°, IF ,

1111

roe-

; 6b 6b ` °

e knoOo$9

+ 00ó00/

ö=

41,

`-Q""L '

lit °. érwOOo9,°e.°> w 4,000,7

e) o9i

óºQ 55

000 ̀ n °

31

3015133111,, 0.0 1111

I(-10

,1 m 00.9/

p4.

between between between between between between

center stud and terminal terminal (4) and can center stud and can terminals (l and (4) terminals (2 and (4)

terminals (6) and can

3

O 7:

Ó áNp

nºº.oboa,oò

Voltage data

on page 173

(3)

NI b O C) .0 G4 +3 ri T! o m A -P di

e co H rl 0 O

mr 11

Tlb a: i lQ F7 \ b O

co O t`- VI Ni 121

in

O

A 0 O {' v tA

A.: or, «4

A c ,c:$ eTsee 'A ea ea ea ea

tl) r-1 r-1 rl 8-1M N, 00

0 O

w wavaA

Wz) r-01 00 v 0

C X m

7+ 0

aO w O U o O

1010113

1133112 / -4 43 QS

m / PU c -c

C)

o

o

o O 00

Ó Ó Ó A A A

1107 p0

rÌ dlri

EARLY -TYPE MODEL

60 AND 60-C.

Voltage reference on page 1-24.


PAGE 1-26 A. -K.

MODEL 61,61-C DC Early Schematic

FILTER CONDENSER DATA. The filter (Direct Current ) Early, contains bypass condensers. The numbers to aro marked upon the condenser can

let a -f filter 05 mfa Detector filter 1.0 mfd Filter # 2 4.0 mfd Filter # 3 2.0 mfd

Filter e1 is a part of ono


condenser unit in the Model 61 and 61-C, two of the filter condensers and two other bd quoted in connection with the connections and aro shown upon the chassis layout

connected between terminals(1)and (3) connected between terminals (2) and (6) connected between terminal (4) and center stud connected between terminal (5) and center stud

of the bypass units as stated elsewhere on this page.

--Joao6ò6ò Ii

;x.909.

S)

Lp0000.

. MIR aZi I.1

min 1

A

rococo, A.

sOs' +

_l_E y. .+ O

``.ì \ ág t

ei

,0000000QQqjF

, 000000`

a2 i ia 1"

Q

O

T OOf 3 y o o n z

o

- IvK AS pps

Immaggimm

.1,03111.019.11.2

009 one: "'

: 3 a ( , z4-

ú, 5 35.

4119 0.9 QQQ9 f -,....n+.. g5;(000p6Ö

e4á;

at 00

i 5'

ïá 6 6 y

0

3

o

-F>

co 'ty

ri -1-7

tu9 0 cd d

r-1 aWNp

r-1 r -t r-1 r-1 CO . F



A. -K. PAGE 1-27

ATWATER KENT MFG. CO. MODEL 60 and 60-4 Late

Schematic

GIB GPM Is. GP

10,000 w

one unif

2.3N f

CONOGICG

0000 WsGPS

eno

Ro.xB.E.T

C BLEEDER RENSTOR

d.z,1f le R. F. BIAS RESISTOR._

CesetweeP

6S,000MACS

w

OPF[v 1

Alo

Peañer field 1100 w

IEow Voltage data on page 173

CIRCUIT or LATER MODEL 60 AND 60-C.

R. F. Bv.PASS Xe. x

RR, IÁÉXIIIIIINNNIy>

'IIPNI IIIIiA1IIIIINNH,-

BLEEDER RESISTOR

POWER TRANSFORMER RESEMBLE

FILTER CRONE

ASSEMBLY

xIM A. F. BIAS RESIBTOR Xo.l

xoF A. F. BIAS RESISTOR No. x

R.F.C. No. E

A. F. TRANVORMER ASSEMBLY.,

VET. PLATE F. CHOSE

-y

BOTTOM CHART Or LATER -TYPE MODEL 60 AND 60-C.

K A P.

ORZO LEAN



PAGE 1-28 A. -K.

<MO

MODEL 61-61-C Late Schematic ATWATER KENT MFG. CO

feel/41,1

99000

1. Arm> 3- III \

Pea Ker eeld 700 w

SCHEMATIC DIAGRAM OP LATER MODEL 61 AND 61-C (DIRECT CURRENT). FILTER CONDENSER SPECIFICATIONS are shown on page 174. BYPASS CONDENSER designations shown.upon wiring diagram also appear upon chassis layout on pagel77, For BYPASS CONDENSER data refer only to page 177 and not to page174.

R-F Fil, 2.9 Plate 78 Grid 4.6* Screen 60**

Def. Ist A-F 2nd A-F 61

4.6 4.6 4,6 32 50 80

1.4 9

* This voltage applies only to the Ist R-F stage. The 2n.d R -F bias voltage is 1.4 voltas and the 3rd R-F bias voltage is 0.9 volts.

CX.371A CX-371A

0 0 21,1 2nd A.F. A.F.

CX-322 CX-322 CX-322 CX-112A CX -112A

0 0 0 00 1st 2nd 3rd

R.F. R.F. NF. A.F.

**The screen voltage quoted applies only to the third R-F tube. We other K-F tubes secure different values of screen voltage. K-F tube number I or rather the first K-F stage hal. 46 volts applied to its screen. Likewifse the 2nd K-F dtégehas 46 volts applied to its screen.

The foremenfioned voltage measurements are made with the volume control adjusted to minimum.

Condenser reference on page 1-26.


A. -K. PAGE 1-29


Chassis

0,19 a

-A

II'

tQ,

7=11

)

OO

3 do'.3a U01515313

n3 ua NOi 5i53tl

u3il 1 ' 1,1

;á ,d

8 111

il

o

Ó m

N

el d+

44 ey* 1

LL(

1117 '4111

iu.,'3o33,a

i

ÀJ

i

vae

=01

l n

D____7Z

6 ¡®

K Lai

/L¡

Cl.

C)

hsale dtlúue"rtar

v v

Iu

o


PAGE 1-30 A. -K.

MODEL 66 Schematic Data

ATWATER KENT MFG. CO

FILTER CONDENSER CONNECTIONS. The following specifications should be used in conjunction with the schematic shown below and the chassis layout shown on

The numerals refer to the numbers marked upon the condenser can

Filter #1 Filter #2 Filter #3 Detector filter 1st a -f filter 1st a -f bias

co

2.1 mfd 2.3 mfd 2.3 mfd 1.0 mfd 0.5 mfd 0.1 mfd

connoted between connected between connected between connected between connected between connected between

terminals (1) and (4) terminals (2) and (4) terminal (6) and can terminal (5) and can center stud and can center stud and (3)

1

:. ,'

dt.

G

i H

N y 10 10 00 10

r11 4,434)1

r -1 r -e1

O 0 0 0 0 0 AAAAAA 000000 ? ? ? ? ? ?

.`"dR7 M M 4a ek

ri rl rl e-1 U 0 o00 ag4w a

101010100 431 e-1

re -1 re -1 r -ei 0 0 0 0 0 A A A A

0 0 0 0 0 W LO 1n 10 lA ri ri r-1 ri r-1

-d 'd 2s 'd R3

a id '0 ri r4 ri NJ .....

IAtxld+A OD


A. -K. PAGE 1-31

KRF N ORID RY FACf


RAU

Lu R. F. SCAM.. RUMOR

FORME A IEL

3MO oF VOL CONTROL

BLACK -RED -TR. BLACK RED

-B -A +A

v.

dI.)

o o o 0

S p ea Ke.r -Field

B. Lb

i - a ( fia><a/ 2.o E/C%

4appid

ON OFF

NF..R.F.T. aOXEMR.00G a. S INA 1.F.T. DRID 3R E\ coNDFnEER}-D R. F. N.p I

R p il WE. FD-0UCKjGREER.

C> O O

ó 1 1 ¡ R. F. 9YDASE

OCT. A.F. .v FAss .

DDDELa -RNDne

wNDFnstR

D[MEfIETORIL

VELLOW COVEREDr

DCT. FILTER

DR. FILTER RESiSTOR

RLACI RED

Spa KGr ,. e 1 d

0 0 $, w o YELLOW WHITE BROWN GREEN -YELLOW -TR.

+45 +135 +180 +87*

MODEL 67,67-C Early and Late Sohematio

m. A. E RED 2A ERO.. \z^R

sroñLF;A1

YELLOW RLA«TR.

a OI C> C>

TRANSFORMER

lA u. YELLOW

PILOT

3

m BLACK. s

p -.R

FLACRWIT.. GREEN TR.

ZO,OOO.0

DIAGRAM OF EARLY MODEL 67 AND 67-C (BATTERY OPERATED).

Voltage data on page 180

R

WHITE YELLOW +13S +4S

000x.Sm.f`" . ... IA

. c

9).3

1,0,00o

BROWN GREEN -YELLOW -TR. flea +G7k

T BLACK BLACK -RED -TR RED

-A -B .A

l

DIAGRAM 01' LATER MODEL 67 AND 67-C (BAT -I -REV OPERATED.



PAGE 1-32 A. -K.

MODEL 66 Voltage MODEL 67 and 67-C

Voltage AT -WATER KENT MFG. CO.

vOLTAGE DATA FOR MODEL 66

line voltage 110. line voltage of 120 volts increases voltage 10%.

Tube Filament Plate Grid Screen

R-F (Ist) 2.2 158 5.5 110 R-F (2nd -3rd) 2.2 160 2.8 78 Detector 2.2 206 23. A-F (Ist) 2.2 137 2.8* A-F ( 2nd) 6.9 412 78.

* This is the measured voltage, not the actual operating voltage.

(A.c. 67

Cx-381 CX-381 CX350 CX.330

0 0 0 0 Ract Net. 2nd 2nd

A.F. A.F.

C-324 C-324 C-324 C-327 C-327

0 0 0 0 0 lit 2nd 3ed Det 1st R.F R.F. R.F. A.F.

(satt.

cX-371A Cx-371A

0 0 2nd 2.d

A.F. A.F.

CX-322 CX-322 CX.322 CX112A CX111A

O O 0 0 O lit 2nd 3ed Det. lst

R.F. R.F. R. F. A.F.

VOLTAGE DATA FOR MODELS 67 and 67-C

These values apply when the total

Tube

RF ( I s t -2nd) R-F (3rd) Det. AwF (1st) A-F (2nd)

Filament Plate

trBtt voltage is ISO volts.

Grid Screen

3.3 110 1.5

3.3c 110 2.5 5.G'' 50 -- 5.0 55 4.5

5.0 150 45.

These values apply when the total

Tube

R-F R-F Det. A-F A-F

Filament Plate

Flan

30 25

voltage is 180 volts.

Grid Screen

(Ist-2nd)3.3 135 1.5

(3rd) 3.3 135 2.5

5.0 60 --

(Ist) 5.0 65 4.5

(2nd) 5.0 180 45.

45 40


A. -K. PAGE 1-33

4.1010.

3

0


...... uÌ

5 pea 4er -1ield 65o to

2101. I

Oufpui +rRNrto1-w?r pr' 444°6-1

300 ,A;

Sgcondari o.l w

1,01,1113 2R

r-

O 0 0

3

A

3

0 0 0 O

N

-0w4 Tz.o«f

s.s.+

M D

r

45. so

-°r ...... '

3

0

w

3

4-S w

MODEL 70, 74, 76 Chassis D

,o0oy ......ó oI

° 2A. .00=

L. 1

3.0 w

/.4

fult

0

2

RID cetvt.t,

/.4=

, 06ó4ºb

DIAGRAM OF D-1 CHASSIS.

BYPASS CONDENSERS. The letters within the circles adjacent to the various bypass condensers correspond with the letters shown within the respeotive bypass units on chassis layout Note exception stated beneath the following tabulation.

RF Bypass #1 L .1 mfd 400 volts L el mfd 400 volts U .02 mfd 400 volts

RF Bypass #2 E .1 mfd 400 volts F .1 mfd 400 volts Vi* .1 mfd 400 volts Wi* .1 mfd 400 volts

RF Bypass #5 H el mfd 400 volt¢ S .l mfd 400 volts P .0015mfd 400 volts

RF Bypass #4 D el mfd 400 volts V .1 mfd 400 volts X .1 mfd 400 volts W el mfd 400 volts

# 14710

# 15262

# 16880

# 15262

* Used only in D-2 chassis as shown in wiring diagram of D-2 receiver These two condensers are not used in D-1

chassis, but are shown in their proper position in the chassis layout

Tone control All condensers are rated at 100 volts

SPECIAL NOTE. Chassis D-1 and D-2 are identical except for the minor changes noted

above in connection with bypass condensers 11 and V1 and also as noted on the D-2 schematic


PAGE 1-34 A. -K.

MODEL, 70,74,76 Chassis "D-1"

yLLLIA




A. -K. PAGE 1-35


-.,<. . j~f.[,... wf-

/. lu

B1pas5 uhtts V, 4µA W I

pre. show" I H

chasSts (Qyoufi

o f D - z 11V,- F.

ßpass -rz. They qre nol used ìn ^

al

2 F.9,,

o [ O %to,I. ój .5

.1.

3

:Ó

'0 0.1

"e$to

f

o

ºt 3

pF,....F

t

ó o 0

32 w

.4

3 o o o 0 N+

les

MODEL 70,74,76 Chassie "D-2"

0001SM Orr

..13/3"'

r

,-----,

GOO

9 gAz_.r 4.°

/.Owf?TL.O iss

/. 4 tvJ M`5

s9Q4Q404. f

SCHEMATIC DIAGRAM OF TYPE D-2 CHASSIS.

Note the addition of by-pass condensers V-1 and W-1 and the reversal of screen -grid resistors No. I and No. 2.

VOLTAGE TABLE FOR TYPE D CHASSIS Set in operation. Volume control at maximum.

LAD switch at distance.

Use High ResistancefD. C. Voltmeter (about 0-50-250) to Measure Plate and Grid Voltages.

Use A. C. Voltmeter to Measure Filament Voltages.

APPROX. VOLTAGES, USING 120 V. LINE

FILAMENT PLATE CONTROL -GRID SCREEN

TUBE VOLTAGE VOLTAGE VOLTAGE VOLTAGE

Ist-R.F. 3.3 75 4.2 6o*

2nd-R.F. 3.3 75 1.3 50

3rd-R.F. 3.3 75 1 50

Detector 5 20 - ist -A.F. 5 45 6

2A 5 75 10

2Aa 5 8o lo

All readings made from cathode in heater -type tubes, and from -F in plain -filament -type tubes.

Use 250 -volt scale to measure and A. F. grid voltage.

'This is 50 volts in D-2 chassis.

- AFUNU CALA

13 EUCN.

W14 MAIN.

Tn rt.o.nnc col,

GE. WmITUTO

o

TO FLOATING COIL

LILAO[N FAN[, CONNECTION,

OLP UCN.A


PAGE 1-36 A. -K.

MODEL 70,74,76 Chassis "D-2"

Layout

ó

OIL Frit-11

0,100 tl

011n 1 11 03tl

>4 J

Voltage reference on page 1.35.


A. -K. PAGE 1-37

ATWATER KENT MFG. CO: MODEL 70,74 and 76 Chassis "F"

In some early Type F Chassis. a line by-pass condenser is used. and the 1st -A. F. grid resistor (gray) is omitted.

pIPuo

U w

SS All w3áÑ°o23úi

CO

@

s 53

>.e

et


PAGE 1-38 A. -K.

MODEL 70,74,76 Chassis F

>71A,


0.1,X11.

o a'o2

r

000bai

oo at, -A

/d e/w

000Q, f

d

VD000

T

01.

cri 00r/

3 0 41;

0-4 Q

<Y)

iLl

,r) oast

o o

z

BYPASS CONDENSERS. The letters within ions within the bypass units shown in RF Bypass #1 g C .1 mfd 400 volts

F .0Imfd 400 volts RF Bypass #2 A .1 mfd 150 volts

B .1 mfd 150 'volts

RF Bypass #3 D .1 mfd 400 volts T .04 mfd 400 volts

Detector Bypass R 1 mfd 400 volts P 0012 mfd 400 vol

Tone Control All condensers are

o o

2g

Zi

o 9

00 0

6.1


1.4.

tlo

t5 0 ' 0 0-1.' 0 0 0 0 e e 43 e

eJ to ri 11 fz eri $3 gt

4-§ 0000 Mei :Diet! irk -; Goo oto

9-I

lei0000 eLlei2 f)ttli 8& 0000

gm -d4) Eddä h.p.0000 0000 o

me, ol

'2,

.1e- " .,2 . N

fri

o

0 0 Ng

0 0 .0 04)

43 0 a

LU g ge o

0 N N 00 00 11. 0 43-p Oie 5 2 2 irf

0000 0 14

A° Is 3

co id Ce a 0 tkl) e e -I e -i ri

V t'a ea va

1:, . . ri O

4.>

ei e 0 NI 4, 0 43NMN 0 0 0 0 0

Ei rf 0 43 e e e-1 Cf e -I gQ erl irf ir4rz4rz4rx.

the circles correspond with the designat- the chassis layout

E .1 mfd 400 volts # 15790 ( In very early F "F" is .1 mfd.)

ts rated at 100 volts

U .12 mfd 400 volts # 15770

H .2 mfd 400 volts # 15780

M .075 mfd 400 volts # 15640 P .00025 mfd 400 volts


A. -K. PAGE 1-39

MODEL 70,74,76 Chassis "L-1"

LA joist

o»la»Ir 0r1w »0111

b0181i3b blalld '110

80iº'eie H3Q3319


áéóIsºb

9¡,.. =1J,..

-- " O , ,

81'111».»TV19


PAGE 1-40 A. -K.

MODEL 70,74,76 Chassis L-1 ATWATER KENT MFG. CO.

BYPASS CONDENSERS. The letters within the circles designate the within the multiple units shown on the chassis layout RF Bypass el L .01 mfd 400 volts L 01 mfd 400 volts

.1 mfd 400 volts E .1 mfd 400 volts RF Bypass #2 150 volts II .12' red 400 volts

150 volts 400 volts 400 volts 400 volts

RF Bypass #3

Detector Bypass

E 2 mfd 400 volts

M .075 mfd 400 volts 0012 mfd 400 volts P .00025 mfd 400 volts

Tone Control All oondonaors rated at 100 volts

P-2

C

A B

D T F P

.1 mfd

.1 mfd

.1 mfd 04 mfd .1 mfd

p

e

JIM

se

2

4L11W WIiNV1,

__ 00 0000_/' 0011

n000-ooi A - oSo /

4

4

r o o os9 d H-

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;_/g'

~ o oóO ysj

a000 ale

bizrlz f o/Y

000º,

XJP/y .0009

istOO L/ ;VW .

^+oo9,s

3ti

Ox v Ót

. YV . ....... `

_---- ; i éá'

InOOSZ O ;

O .4 0

2

JO -

t 3 o o

e

(I

º o

-4010091

itNete

3

o o

3 0 o

condensers

# 15790

#15770

# 15780

15640

CO m .., m 07 N d+ O .........../..../......

U ©

ri

11 Si 0000

m 4,43434>

mm mmm ó tiii 4-

l+l

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.m 0 o

mX) m m m m 0 ri ó ó ó ó b n

il

o m

ii O o o

11 v

ri ni tio

ela Ad 4a gd

ai as 0 o co .-i 00

t, Ct ri m

cn to

rol 5ni 0 z +> W O O '?.z: 2 rcl°aaw

O i4 í"iri ri NM C) O ta

W ., 00000 H Ó 41

cd e r4 r -t r rl -r1ritf.

-rl o [. f


A. -K. I'AGL 1-11

MODEL 70, 74, 76 ATWATER KENT MFG. CO. Chassis L-2

BYPASS CONDENSERS. The letters within circles designate the condensers within the mi..ltiple units shown on the chassis layout

L RF Bypass #1 .01 mfd 400 volts L .01 mfd 400 volts C .1 mfd 400 volts E .1 mfd 400 volts

# 15790

RF Bypass #2 A .1 mfd 150 volts II .12 mfd 400 volts B .1 mfd 150 volts

# 15770

RF Bypass #3 D .1 mfd 400 volts H .2 mfd 400 volts T .04 mfd 400 volts

# 15780

Detector Bypass F .1 mfd 400 volts M .075 mfd 400 volts P .0012 mfd 400 volts P .00025 mfd 400 volts

Tone Control All condensers are rated at 100 volts

# 15640

ó10o--0;gam--- e .t:i T-

z

i t It

oop9 .. , -1.90004ó000,

+öö ó AVVO

.,,.:':~^'' OaOÓ£

-lierd00000', x.no..

1Ë !mop P.,s

.,: . ̀°«

.'. fe-OoOei

xaiy OSO 1

., oodo71,

Doc) aboor/

NVV T.S.^ xa/ dr 0 O

AhVV-44

m DOSt

.,,,

..a and

w 4

£ --1;';'/ í'Ii.^. 3x -. .g.i. . 3' óo

-' É o

0 .

z1

oi. ^ 000d0Q9

P4 T12S'cS'CS

. 1 52 2

_ et riNt9d.. .i

me.

72)::,

11111 óó O m m m m 4-1 re.,:e6, 4a e 4, e -P ó mmmS V9 07 eiJi m o. b e m O m.0 ov

0º p.a.Q¢t M C

Ó e R7 R3 Cl 2i e `m Ó O .}0 } v ; i O Ù U 1D 1 vn iiiAl mri óñ óñ°

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Q W 0 a T

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C 434h414:

4 s2t,s,s. m++Fó m .a î'. 42 r1 ri ri 0 wáA K ill wá


PAGE 1-42 A. -K.

MODEL 70,74,76 Chassis "Ir2" Layout

111

SOVel 1,31,


Mo,e

roe

0 e ----Tr-i!J"o

,,.

.m.

MOUll

f

z

emeo 142v10

-Qii .

a1" - tt..,..

e0iSi53e Sr 1 01

i ii


A. -K. PAGE 1-43

MODEL 76

Chassis P ATWATER KENT MFG. CO.

BYPASS CONDENSERS. The letters within circles designato the multiple units shown on the chassis layout RF Bypass #1 L .01 mfd 400 volts L O1 mfd

C .1 mid 400 volts E .1 mfd A .1 mfd 150 volts IT .12 mfd B .1 mfd 150 volts D .1 mfd 400 volts T .04 mfd 400 volts

Detector Bypass F 1 mfd 400 volts P .0012 mfd 400 volts

Tone Control A11 condensers are rated

RF Bypass #2

RF- Bypass #3

LÌTTI

i

é

-g iIL/ Qncri 7 44Q9 o i fö/

n0009

.,.,^7G

c., 00992

3 o o

the condensers within

400 volts # 15790 .400 volts 400 volts # 15770

H .2 mfd 400 volts # 15780

M .075 mfd P 00025 mfd at 100 volts

000,000

fl

o

400 volts # 15640 400 volts


3 o

$

o

o el r-1 ' M d" . `........

hifi r-i

r-1

Voltage reference on page 144


PAGE 1-44 A. -K.

MODEL 70,74,76 Chassis "L-2"- Voltage Voltage Data Notes

VOLTAGE TABLE FOR TYPE L-2 AND P CHASSIS Set in operation. Volume control at maximum.

L -D (or 'phono) switch up.

Use High Resistance D. C. Voltmeter (about 0-7,n,2 511) to Measure Plate and Grid Voltages.


APPROX. VOLTAGES, USING 120 V. LINE

nPn ATWATER KENT MFG. CO.

TUBE

FILAMENT

VOLTAGE

PLATE

VOLTAGE

CONTROL -GRID

VOLTAGE

SCREEN

VOLTAGE

Ist-R.F. 2.4 ISO 5 85

2nd-R.F. 2.35 1óO 4.5 86

3rd-R.F. 2.35 Ió0 4.5 Rai

Detector 2..35 IIO 14**

Ist A.F. 2.35 70 2

2A 2.45 250 55* 2Aa 2.45 250 55*

Rectifier 5.

Use 250 -volt scale. B This Is the voltage across the detector bias resistor; when measuring from grid to cathode, the voltage reading is only 2.

All readings made from cathode in heater -type tubes, and from -F in plain -filament -type tubes.

INPUT A. F. TRAMFORMER

ASSEMBLY

s

IMF

T q

FILTED CONDENSEEM

FILTER CONDENSER ASSEMBLY

DUAL VOLUME CONTROL

LOCAL.DISTANCE SwiTCH

Condensers in R.F. By- Pass No. 1

L-Line by-pass. L-Line by-pass. C -2nd -A.F. bias by-pass. E-ist-R.F. screen by-pass.

ON.oFF SwiTC-

FILTER CHOKES

ED TK Ne , R. Me. 2

FILTER.CNOKE ASSESS SLY

DIAL LIGHT

Models 75P, 70, 74, 76, 60 (3rd type) (1930.

1 RF PILOT 3.2 V. o 24A

2 RF

O '24A

I AF 3RF

o O 21 '24A

DET

o '27

0- .45 2AF

0-- '45

RECT

o 'so

FRONT

To FLOATING COIL

COTNTTROL CONDENSER

Condensers in Detector By -Pass F -2nd -3rd R.F. screen by-pass. M-Detector-ist A.F. coupling condenser. P-Phone condenser. P-Phone condenser.

Condensers in R.F. By - Pass No. 2

A-ist-R.F. bias by-pass. B-R.F. bias by-pass. 'U-Ist-A.F. filter condenser..

OECD.

TO "LOOTING COIL

...ma r.Nu CONNSCTIGw

"CATER TRANSFORMER AUEMEIY

TONE CONTROL

SWITCH

Condensers in R.F. By - Pass No. 3

D-Detector bias by-pass. H-R.F. plate -circuit by-pass. T-Detector grid -circuit by-pass.

CONNECTION OF UNITS IN TYPE L-2 CHASSIS, AND, AT RIGHT. CONNECTIONS TO TERMINAL PANEL OF TYPE N SPEAKER.


A. -K. PAGE 1-45


Type Q Chassis (battery operated) has three stages of screen -grid R. F. amplifi-

cation, grid detection, one stage of transformer -coupled audio, and a double' audio output stage.

An output filter choke and condenser are used in the Q-2 (above Serial No. 5704025), as shown in the diagram below The Q I Chassis does not have these two parts.

CONNECTIONS OF INDUCTOR TYPE J SPEAKER.

R.F. íúy -Pass No. 1

G-R.F. screen by-pass. V-ist-R.F. grid -circuit by-pass. Y-Output filter condenser. N- ist-R.F. filament by-pass.

MODEL 70,76 Chassis "Q" Voltage

VOLTAGE TABLE FOR TYPE Q CHASSIS Set in operation. Volume control at maximum.

L -D switch at distance. Use High Resistance D. C. Voltmeter (about 0-50-250) to Measure Plate and Grid Voltages.


180 VOLTS "B" BATTERY

TUBE

st-R.F. and-R.F. 3rd-R.F.

Detector

Ist -A.F. 2A 2Aa

FILAMENT

VOLTAGE

3.3 3.3 3.3

5.0

5.0 5.0 5.0

R.F. By -Pass No. 2 *

H-R.F. plate -circuit by-pass. T-Detector filter condenser. P-"Phone" condenser. P-"Phone" condenser.

R.F. By -Pass No. 3

S-Detector filament by-pass. R-3rd-R.F. filament by-pass. R-3rd-R.F. filament by-pass. O-and-R.F. filament by-pass.

LOCAL-0I1TAMC[ ewITCM

MOL COND[Mt[M

TOW CONTROL N/ITC11

PLATE VOLTAGE

135 135 135

CONTROL -GRID VOLTAGE

I.5 I.5 2.5

70

67 45 18o 45 18o 45

No T

The output filter choke is not used in the Q-1 chassis.

*The conne«ions shown for R F by-pass No. 2 are correct when this part is No. 16060

However. if a No. 18350 (H-281 is used. 'P" awl 'l'' :Ir. el top and "H" and "T" are al

bottom; therefore, the connections to chi, condenser are c Ineapon Iinulr :hanged

, ..,..rD ,I.

-OLV.íW! fAMTIIOI

SCREEN

VOLTAGE

45 45 45

Models Q (Battery), D'(13C) (1930)

1 AF

1 RF PILOT 6.0 V

O 'u

2 RF

O

3 RF

O '22

G DET '12A O

'12A FRONT

G- . '71A i AF

0- 716


PAGE 1-46 A. -K.

MODEL 70,76 Chassis Q

aów\ o c


,000:.c.n. PT. RAM

`/d24 000 W

...,.V. ,._..,... 2211Z ... ..-----

IA

DIAGRAM OF Q-2 CIiASSIS.

000.K %-+-ir --oo,

The output filter choke and filter condenser are used only in Type Q-2 Chassis. The choke is mounted in the 2nd -A. F. input transformer container. Type Q-1 Chassis may be converted to Q-2 by installing this unit (No. 18020) and connecting it as shown above

DrTECTOR GRID EUR

N. R. P T

/SOY

ANTENNA

A.MEMBEV

400 41ts S .1mfd R .1mfd R .1mfd 0 lmfd

If unit is marked H-28

H 1 mfd T .1mfd P .001 mfd P .001 mfd

It unit is marked H-24

P .1mfd T .Smfd H .001 mfd H .001 mfd

SPEAKER

AM A. F. INPUT TRANVONMER

Iletlerf PO.



A. -K. PAGE 1-47

I4

fi.

?st

M 000'00) mY4 v v m

o


S t(.. YO1.,.lY 0.Y

v, T °Y'w' Yo,,..,- Wi .

q":27,: ¡o »,:90oS9

" N

a/tez/i rr, O.SO/-

i

.» OOO'O yy

/b OpÓO* .eel:::.l.

t dr

. tl4s.N.tl Y Y OUl1l0 O,YO

a Ï -Q Nd - 412]1)0Wd _

M1 ób

""r, I

YOOdYMI

IP `

M 0000/

.>., c., T t4

dfg ..".YOi'N,

n o 6 119e c+' aSE =e --t

m4- É I~

Q

e -4 s d3

_1`

r -I(

s3

Y2Y1. 4

H) J

O

ea

,ir

.000, M 9*

é

Yl'Y4Y,eNIIM-M019A

.

f= ' m OL\

3 O O

mY

e


3

0

o 0 o

3

:g

141.00

4,

2

ON,O IM 10.1.10., NOIN

ä;

MODEL 72 Chassis H-1

(,(

>né

/



PAGE 1-48 A. -K.

MODEL 72 Chassis "H-1" Voltage

TYPE H-1, No. 16500, SUPER -HETERODYNE CHASSIS (Below Serial No. 5,855,201)

2nd-DET. TRIMMER

2nd-DET. I. F.

TRANS.

3G- 3 R. F.

2nd -I. F. TRIMMER

1st Det

Oso. 1st IF 2nd IF 2nd Det 1st AF 2nd AF PP 2nd AF PP Reot. With volume to about 150 volts. * Use

TRIMMER No. 1

"DOUBLE -SPOT" TRIMMER

1st -I. F.

TRrMMER

TRIMMER No. 2

TRIMMER No. 3

:. O.N lrSEFt

nOS'r'LFP

TRi1NS

OSCILLATOR TRIMMER

F`; LTEi f; "i,l}: .

TONE -CONTROL CONDENSER

Tlll' VIEW Or A'l'WA'l'F.k KF:NT TYPE H -I SIII'E.K-HETERUUYNF. CIIAstil1

"A" Volts "B" Volts Control Grid Screen

2.4 150 2.3 100 2.3 150 4.3 145 2.3 100 2.3 65 2.5 250 2.5 250 4.7

3. 12. 10.* 3. 75. 3. 86.

13.** 2.

55.*

55.*

control at minimum, the IF plate voltage is reduced volts and screen voltage is reduoed to about 10 250 volts Saale of high resistance voltmeter. ** This

is the voltage across the detector bias resistor.


A. -K. PAGE 1-49


FILTER CONDENSERS. Numerals in circles indicate connections u denser terminal block. These numbers are shown upon the parts also upon the chassis layout Detector filter el mfd connected between terminal Filter #1 2.0 mfd connected between terminal Filter #2 1.0 mfd connected between terminal Filter #3 1.0 mfd connected between terminal Resonant condenser .225 mfd connected between terminal

MODEL 72

Chassis H-1

Below serial 5,855;201

pon filter con - layout below and

(1) and can (2) and center stud (3) and center stud (4) and can (5) and center stud

BYPASS CONDENSERS. The small numerals adjacent to the bypass ponds with the designating numerals upon the chassis layout

condensers corres -

RF Bypass #1 1 .01 mfd 400 volts 2 .01 mfd 400 volts # 17360 3 ®3 mfd 400 volts

RF Bypass #2 4 .1 mfd 400 volts 5 .1 mfd 400 volts # 15262 6 .1 mfd 400 volts 7 .1 mfd 400 volts

RF Bypass #3 8 .075 mfd 400 volta 9 .0012 mfd 400 volts # 16745 10 .3 mfd 150 volts

RF Bypass #4 11 .1 mfd 400 volts 12 .00123mfd 400 volts # 17370 13 .1 mfd 400 volts 14 .04 mfd 400 volts


. PLATE n inoKE

A. © © 1st I. F ,E7'-, \ß

n TH. F.

çHOKÉ

TPIMMEP

2nd I. F. STOPPINO CONDENSER STOPPING

CONDENSER

2nd DE

PEeIBTOR

R. M7,45

NPEYPASS . 1

2nd DETECTOR TRIMMER CONDENSER

NELLOW COVERED, -IJGHT RESISTOR

IA8 na ETECTOR

PESISTOR

DE ECTOR PUTE CHOKE

In DET. PLATE

CONDENSER

a OdG

REBISTOR ER

in I.F.

STORBCREEN REBI

REN PEb18TOR N . 2nd DETECTOR

REBISTOR

UCX

AP00

0`PGÿ

tROFT

RESISTOR

CROSS PIECE

SIAB RES.GTOR

I CROSS PIECE C

A F. SIAS RESISTOR Na. 2 In RF815i0RR

HIGH -VOLTAGE

SECONDARY

INPUT TRANSFORMER

Borroí CHART or TYPE H-1 CH:,ssrs


PAGE 1-50 A. -K.

MOD:M 72 Chassis "H-2" Voltage

2ndI. F.

PLATE TRIMMER

2nd-DET. GRID

TRIMMER

lit -I. F. LATE

TRIMMER

2ndI. F. GRID

TRIMMER


TYPE H-2, No. 16500, SUPER -HETERODYNE CHASSIS (Above Serial No. 5,855,201)

ANTENNA TRIMMER

VOLUME CONTROL

TRIMMER No. 2

"DOUBLE -SPOT" let -I. F. TRIMMER TRIMMER

TRIMMER No. 3

OSCILLATOR TONECONTROL TRIMMER SWITCH

To,. VIEW OP ATWATER KENT TYPE H-2 SUPER -HETERODYNE CHASSIS

Note that trimmer No. 1 is omitted. The antenna trimmer serves the same purpose

VOLTAGE TABLE FOR TYPE H-2 CHASSIS

Set in operation. Volume control at maximum

Tube "A" Volts "B" Volts Control Grid Screen

1st Dot 2.3 150 4. 15.

Ose 2.5 130 10.*

1st IF 2.3 150 3.5 100.

2nd IF 2.3 150 3.5 85.

2nd Det 2.3 100 14.**

1st AF 2.3 70 2.

2nd AF PP 2.5 250 55.*

2nd AF PP 2.5 250 55.*

Rect. 4.7

CONNECTIONS oP N

SPEAKER

With the volume control at minimum, the IF voltage is reduced

to 15 volts. * Use 250 volt scale of high resistance voltmeter.

** This is the voltage across the detector bias resistor; when

measuring from grid to oathode, the voltage reading is only 2.

All readings made from cathode in heater type tubes and -F in

filament type tubes.

TONE -CONTROL CONDENSER

THE DOUBLE SPOT CIRCUIT

The double spot oirouit is simultaneously tuned to two different frequencies. The complete circuit consists of #3 and #4 RF transformers and #3 variable condenser. A part of this circuit, #4 RFT, the double spot trimmer and #3 variable condenser is auto- matically tuned to 260 KC more than the desired frequency.


A. -K. PAGE 1-51

,_r_

b$

g« sl0 .+ 00059

fm trooi,


Chassis H-2

o- so

o

o a

Al3 s \.(2Q44 OQ40);

1111 ` ---»-lOr---

M

see page 206

tl3

Si

2N,!no00bg

Y3isis3tl )(b/ srn' I

E. , 0S o/ 03tl13013 n+000300/

tl0131t3tl DYIL1100 Y01S183tl tl31113

Y0103130 VuS 't30 W2

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s

30

n

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tld

r

ï

x

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e Lº O\

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Voltage data on --1(- ,Jn' 1 page 208

¡-O, ; Y. 3. tlM -t M Jn] 4 IP PEAK 130 KC



PAGE 1-52 A. -K.

MODEL 72 Chassis H-2 Above serial 5,855,201


FILTER CONDENSERS. Numerals in circles shown on wiring diagram indicate connections upon filter condenser terminal block. These numbers are also shown upon the parts layout below. Also upon the chassis wiring diagram

Detector filter Filter #1 Filter #2 Filter #3 Resonant condenser

.1 mfd connected between terminal (1) and can 2.0 mfd connected between terminal (2) and center 1.0 mfd connected between terminal (3) and center 1.0 mfd connected between terminal (4) and can .225 mfd connected between terminal (5) and center

BYPASS CONDENSERS. The small numerals adjacent to the various bypass shown on the wiring diagram correspond with the designating numerals parts layout below and the chassis

stud stud

stud

condensers upon the

RF Bypass #1 1 .01 mfd 400 volts 2 .ol mfd 400 volts # 17360 3 .3 mfd 400 volts


RF Bypass #3 8 .075 mfd 400 volts 9 .0012 mfd 400 volts # 16745 10 .3 mfd 150 volts

RF. Bypass #4 11 .1 mfd 400 volts 12 00123 mfd 400 volts # 17370 13 .1 mfd 400 volts 14 .04 mfd 400 volts

RF Bypass e 15 .1 mfd 400 volts 16 .1 mfd 400 volts # 15262 17 .1 mfd 400 volts 18 .1 mfd 400 volts

Rnd .F. TRANSFOPMER

2nd I. F.

ene RET. I.F. TRAISFORMER

DIAL LIGHT RESISTOR (YELLOW COVERED.

lot f. STOPPING

CONDENSER

l.t DETECTOR PLATE CNOKE

OSCILLATOR GRID LEAN

M DETECTOR DIN RESISTOR

BLEEDER RESISTOR IM A. F. GRID

No. t yFAK

2nd DET.

RESISTOR

OSCILLATOR TRANSFORMER

Ind DETECTOR COUPLING RpISTOR

BLEEDER RESISTOR

No.2

OCROSS PIECE

PRIMARY

POWER TI

R. F. BT -PASS No. 2

lit A. F. BIAS

2M A. F. BIN RF919TO R\Ho. 1

FILTER CONDENSER

W. -VOLTAGE TIECON DART

FILTER CRONE

I RESISTOR Rat lit A F. FILTER

2nd CETECTOR FILTER RESISTOR

2nd A. F. ININ)T TRANSFORM=R

r

A BOTTOM VIEW OF TYPE H-2 CHASSIS

In this chart. the 2nd -I. F. screen resistor should be maroon instead of purple.


A. -K. PAGE 1-53


MODEL 80, 80-F 83, 83-F

In Model 83 and 83-F, n

efi83.8 F. the el ctttolytic use d

roondenser No l is not used, a it is connected as shown in

nd thted e filament circuit Is snee.

This unit is lightly different.T

used in Model 80 and 80-F.



PAGE 1-54 A. -K.

MODEL 80, 80F 83, 83F

FILTER CON D. No. 3


STATION SELECTOR

TONE CONTROL VOLUME CONTROL DOUBLE -SPOT TRIMMER & No. 3 R.F.T.

SPEAKER PLUG No. 1

R.F.T. ANTENNA ADJUSTMENT

2ND DET. 1. F.

TRANS.

Top VIEW OF MODEL 83, 83-F. The circle in the upper right-hand corner is the shield that covers the coupling unit between the

let -detector and the I. F. tubes.

EM DETECTOR IRATE RESISTOR

YELLOW

IM CI pTq, cONOENWI

FR D(TVCTOR PLATO FILM

CHOKE

IILTER co44oEN.ER

M..!

KM. NE.,.TO.J

A. P. ORID. N.. E

kREEN EEsiiioR

DETECT. .,ss RESISTOR

VOLUME CONTROL

ON-OPI .24,1044

POWER TRANSEORMER

FILM MOMS. . 1 IIUMENT-6HUHT uIETOR

RESISTOR Ib. E LEAR

AHTEÿN TRIO

CHART OF MODEL 80, 80-F. The parta on Model 83, 83.l are similar except that Model 83. 83-F has a filter condenser unit and only

one electrolytic condenser.

Condensers in Multiple By- pass Model 80, 80-F,

83, 83F

1-Tone-control condenser. 2-Tone-control condenser. 3-1st-detector-I. F. ,creen by-pass. 4-I. F. bias by -pase.

5 -2nd -detector bias by-pass. 8-Phone condenser.

7-2nd-detector-A. F. coupling condenser. 8 -2nd -detector screen by-pass. 9-Quality condenser.

10-lst-detector plate filter condenser. 11-A. F. bias by-pass. 12 -1st -detector bias by -pass -

The numbers given above correspond with the numbers marked upon the multiple condenser unit


A. -K. PAGE 1-55

1i". 7 äe

Q-

MODEL 81 81-B

ATWATER KENT MFG. CO. 81-C

MODEL 81, 81-B, 81-C

MOTOR CAR RADIO

NMOtla MO1N1

4 OItl )IOY,9

te 3 M)IY0

OO Z

, Y3 MM)iM tll \ 4r

lllllllllllllll ó aú: o

4

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gr 44 : OM.

o. In

OOO ÓÉ. .MOIIIA Na3Y0

IÓI)lY ÇÑ

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ó ó

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3

3 ° 0 ° o!h s o O °tl°,v ºo r,c

o o r *v t W Oh

Qr i á ..- -------------

a 4 ò

O113w-----

a

oltage reference on page 1.56.


PAGE 1-56 A. -K.

VOLTAGE DATA


VOLTAGE TABLE FOR MODEL 80, 81, 82, 82-D, 82-Q, 83, 84, 84-D, 84-Q, 85, 85-Q, 86, 87 and 89

The voltages listed in this table are only approximate, and are measured values, not actual operating values. Turn volume control to maximum.

Use aso -volt scale of a i000 -ohm -per -volt D. C. voltmeter. All plate. screen and grid measurements are made from cathode in heater -type tube, and from -F in plaln-filament-type tube.

J 0 Q X

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A. -K. PAGE 1-57

ATWATER KENT MFG. CO. MODEL 82-D

Q M N

ö;tl er,. ós w

Y ' ,e 0000/ 901914311. Ali 1.00

u3C130u00 A111v00

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V oltage reference on page 1.56.


PAGE 1-58 A. -K.

MODEL 82-D ATWATER KENT MFG. CO.

MODEL 82-D TOP VIEW AND CHART

NO. 2 R. F. T.

NO. I R. F. T.

STATION SELECTOR ON-OFF SWITCH

AND VOLUME CONTROL TONE CONTROL

ANTENNA ADJUSTMENT

SPEAKER PLUG

TOP VIEW OF MODEL 82-D.

DOUBLE -SPOT TRIMMER & No. 3 R. F. T.

IST DET. PLATE TRIMMER

C

'4.101 Ç 38

h o,dutl o C I. m

n 7 o

ÑGaca > "°FVv

All bypass äno $$ Hm" condensers 411 g

ao-o 400 volts zQ"°

aw except tone óaö,ß

control which 2e20Mee is 100 volts wee a

TONE-cONTNOL {nIN LONO TOO[NKR 6WITCN

In DETECTOR KATE

TRIMMER

e°g is DET.

O

ÏIAñ CNÖK!

OSCILLATOR TRANSFORMER

C

WAS.,

TOR OHIO

UI{

R. F. {,RAISE Plc E

R O. EV-NAM N..e

. I. EV.IAu

lut OETECTOR {CREEN

ROI{TOR N. I

//lot DETECTOR

//Rfl 6T0R I{CRaN M. E

OSCILLATOR ARID LEAR I "C DEEECTOR /RESIETNO RE{I{TOR

Eno DETECTOR IILTIR RKIROR

IpCNR

V>",-0,4

N..

-J

.

N..I

FORE CONROL

coNoTeN{ER

Yee

OO OO SPEAKER

CHART OF MODEL 82-D.

h $ó

By-pass Condensers in Model 82-D

R. F. By-pass No. 1

1-Ground coupling condenser. 2 -1st -detector screen by-pass. 3 -110 -volt line condenser. 4 -1st -detector grid by-pass.

R. F. By-pass No. 2

5-2nd-detector-lst-A.F.coupling condenser 6-Filter condenser No. 2. 7-Not used.

R. F. By-pass No. 3

8-Quality condenser. 9 -2nd -detector filter .condenser.

10 -110 -volt line by-pass.

Tone -control Condenser

11-Not used. 12-Tone condenser. 13-Tone condenser. 14-Tone condenser.


A. -K. PAGE 1-59

a II

D Ó sit$


T 000°o pfMT

n+-n+- e ....

' QoTOQº 4

w0.1.111/11w 111

ce

3 m00Ó00/

ooi i

t

110.11

MODEL 82, 82-F

LL

Numerals adjacent to bypass condensers designate units shown upon parts layout on next page within multiple condensers. Condenser voltage ratings are shown upon next page.

Voltage reference on page 156.


PAGE 1-60 A. -K.

MODEL 82, 82-F

FILTER COND. No. I

NO. I R. F T.

No. t R.F. T.

ON-OFF SWITCH AND VOLUME CONTROL


STATION SELECTOR

SPEAKER PLUG ANTENNA ADJUSTMENT

rn TONE CONTROL

CONTROL TUBE

DOUBLE -SPOT TRIMMER & NO. 3 R. F. T.

1ST DET. PLATE TRIMMER IN

MODEL 82

I. F. GRID TRIMMER

IN MÖDEL 80

FILTER COND.

NO 2

2ND DET. I. F. TRANS.

TOP VIEW OF MODEL 82, 82-F. The top view of Model 80, 80F is similar except that it has no control tube and the position of No.1 and No. 2 R. F. T. is interchanged.

REEDER ILLEIETON NF S

FILTTIN CONDENEER

M..T

QUALITY ADIETOR

REEDER NLSISTON

(37ow` N..,

PLAIT FIL LT P CHORS

00 . a ORIDCMONL

REEDER RESISTON

CONTROL

O

:naw..i

VOLUME CONTROL AND

owe,. SWITCH

CONTROL Run RONEY«

DET.. FILTRO NUISTON

//00 w . P

UUU POWER TRANSFORMER

ECTIFIE

FILAMENT SNUNT

NESISTOR

FILTER CONDIINSLN

N..

RES AISFT.

OR Na EIAE

E

® ' ` ' 'O O Q(Q S' A ER ,.). PE sI0 o a f -S

MON N..

CHART OF MODEL 82, 82-F. The filter resistor Is not used In Model 82-F.

CONDENSERS

RF Bypass # 1 # 21180 All 400 Volts

RF Bypass # 2 # 15262

5-6 150 volts 7-8 400 volts

RF Bypass # 3 # 21170

All 400 volts

Tone Control # 20010

All 100 volts

By-pass Condensers in Model 82, 82-F

R. F. By-pass No. 1

1 -2nd -detector bias bypass. 2-Control plate by-pass. 3-Not used. 4-I. F. bias by-pass.

R. F. By-pass No. 2

5-let-detector filter condenser. 6-1st-detectot-I. F. screen by-pass.. 7 -2nd -detector filter condenser. 8-let-detector bias by-pass.

R. F. By-pass No. 3

9-Quality condenser. 10-A. F. bias by-pass. 11-2nd-detector-A. F. coupling condenser. 12-Phone condenser.

Tone -control Condenser 13-Tone condenser. 14 -2nd -detector screen by-pass. 15-Oscillator plate -circuit by-pass. 16-Tone condenser.


A. -K. PAGE 1-61

I aa t /$0 re woe/ Yoo

ATWATER KENT MFG. CO. MODEL 84-D

ò

o.

á ó o ó ó

co

>~ cot:t w a-, o -4-47

Yo.. :: ;:re

lh 000"0.97 le1 r i o z

Ò6 -en pO;j

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a

\ oltage reference on page 1.56.


PAGE 1-62 A. -K.

MODEL 84-D ATWATER KENT MFG. CO.

2ND DET. GRID

TRIMMER

I. F. PLATE TRIMMER Er

"DOUBLE -SPOT" TRIMMER

1ST DET, PLATE

TRIMMER

OUTPUT TRANSFORffER

Primary 600 ohms Secondary 0.25 ohm

Field coil 1200 ohms

By-pass Condensers in Model 84-D

Condensers In R. F. By-pass No. 1

1-Ground coupling cOndenser. 2-lst-detector screen by-pass. 3 -110 -volt line condenser. 4-let-detector grid by-pass.

R. F. By-pass No. 2

5-2nddetector-let-A. F. coupling condenser.

6-Filter condenser No. 2.

7-Tracking condenser.

R. F. By-pass No. 3

8-Quality condenser. 9 -2nd -detector filter condenser.

10 -2nd -A. F. grid condenser in early -type seta. 2nd -detector phone condenser in later -type sets.

Tone -control Condenser (Late -type sete only)

11-Not used. 12-Tone condenser. 13-Tone condenser. 14-Tone condenser.

2ND DET. I. F. TRANS.

TRIMMER NO. 1

OSCILLATOR ANTENNA TRIMMER ADJUSTMENT

TOP VIEW OF MODEL 84-D.

NO. 1

R. F.T.

See note on .5cherlatle,

FILAMENT EER ES RESISTOR No. 1

c,

Ad DETECTOR COUPLING RESISTOR

DIO INPUT TRANSFORM

e. F. EYRAEE No.

130 w TÁTENNA

ER

R.F.ON..i UNDERNEATH

.. aff FEARER `S '

CHART OF MODEL 84-D. (EARLY TYPE WITHOUT TONE CONTROL.)


A. -K. PAGE 1-63

MODEL 85, 85-F


V

`1., o 4.1

QM

©§- /' ¢Fe

' ,AOOÓOSZJ,- M111/102 ..,, m ooO,s9 r F.K1

é ag .

v L. m...,. , 3 /-,ÇG09 I \ g m x0000/

1

0000/

b/.. .fny n, oS.F

If Y,,,. 4

D mn

AM en.l'a- used ii dao-fy 8.6- ties d-'-. ray/ 146vcs of /3o ex,

few early -type Model 85 do not have automatic volume control; they have three electrolytic filter condensers; the circuit of these early Model 85 sets is similar to Model 80. The tracking condenser is mounted on the oscillator transformer in Model 82 and some 85 sets. The filament circuit of Model 82 is somewhat c ifferent from that shown above.



PAGE 1-64 A. -K.

MODEL 85, 85-F

FILTER COND.

NO..3

TONE CONTROL

SPEAKER PLUG


STATION SELECTOR

No. 1

R.F T.

VOLUME CONTROL

ANTENNA ADJUSTMENT

DOUBLE -SPOT TRIMMER & No. 3 R. F. T.

2NL OFT. I. F.

TRANS.

CONTROL TUBE,

TOP VIEW OF MODEL 85, 85-I.. The circle in the top right corner represents the shield for the coupling unit between the 1st -detector and I. F. tubes. See. schematic

lEt DEYECTOR ILTER-CHOK

TRNE

NTMRNENA TRI FR

-. FNAMENT.EHUNT ESISEOR

NTROL

R. F. By-pass No. I

I-Quality condenser. 2-2nd-detector-A. F. coupling

condenser.

3-Phone condenser. 4 -2nd -detector bias by-pass.

UR RESNITOR

I 02:3 ) 1st DET.7

e

ih I af42 only 10 'JO

o KRFENRVEMTOR

In la -Fe oaly 8oOw

End DETECTOR SCREEN RESISTOR

CONTROL

EHETOR

AUDIO 01110 LEAN

End DETECTOR COUtiro

oR

End DETECTOR i ER RESISTOR

DUALITY REUETOR

OSCILLIATEAKOR ORZO

'ROWU TRANSFORMER.

f-

A.CC, I uNRqlmoR l

A F. 4-SIN REfIET011 wE

o

ELEDER= - DRE «aE

'Iv SLEEOFR f -RESSTORE

S2 UNDERNEATH

CHART OF MODEL 85, 85-F. The filter resistor is not used in Model 85-F.

CONDENSERS

RF Bypass # 1 # 19160 Early # 19980 Late

All 400 volts

RF Bypass # 2 # 19150 Early # 19990 Late

All 400 volts

RF Bypass

# 15262 All 400 volts

Tone Control # 16490 Early # 20010 Late

All 100 volts

FILTER CONDENSER

UNIT

o

#3

TER ONENS[R

( OO OD

TIFIER OO

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ATCHISON PAGE 1-1

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C-4 R. F. Plate By -Pass Con- denser.25 C-5 Antenna Condenser .00025 MF

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C-ll Filter Condenser 2 MF

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R-4 Mid -Tap Resistance 20 Ohms

R-5 R. F. Grid Bias Resistance 2,000 Ohms

R-6 Volume Control 15,000 Ohms R-7 Hum Control 20 Ohms R-8 Loss Current Resistance 3,600 Ohms

R-9 245 Grid Bias Resistance 770 Ohms

R-10 R. F. Plate Rsistance R -I1 1st Audio Grid Resistance .5 Megohn

T-1 Antenna Transformer T-2 R. F. Interstage Transformer T-3 Input Push -Pull Transformer T-4 Power Transformer B -I HI -LO S.P.D.T. Toggle Switch B-2 S.P.S.T. Toggle Switch D' Dial Lamp


PAGE 1-4 BALKEIT

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R6 1st Audio Grid Resistance .5 Megohm.

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BALKITE PRODUCTS PAGE 1-1

BALKITE PRODUCTS CO. SPECIFICATIONS

Balkite Models and Specifications

Current Models Balkite AB 6-180, "A" and "B" Current Supply

Max. Output "A" 6 volts 2 amperes "B" 180 55 m.a.

B Voltages, 180, 135, 90, 67%, 45 or 22%

Consumption: watts 127 Dimensions: 10%" x 18%" x 7%"

Balkite AB 6-135, "A" and "B" Current Supply.

Max. Output 6 volts 2 amperes 135 40 m.a.

B Voltages, 135, 90, 67%, 45 or 22%


Balkite A-6, "A" Current Supply.

Output 6 volts 2 amperes

Consumption: watts 100 Dimensions: 6" x 10%" x 8%"

Balkite B-180, "B" Current Supply.

Output 180 volts 55 m.a.

Voltages, 180, 135, 90, 67% and 45 or 22%

Consumption: watts 27 Dimensions 4%" x 12%" x 8%"

Balkite B-135, "B" Current Supply.


Voltages, 135, 90, 67% and 45 or 22% Consumption: watts 17 Dimensions: 4%" x 8%' x 8 6"

Balkite BW, "B" Current Supply..


Voltage, 90 and 45 or 22? s Consumption: watts 6 Dimensions: 3%s" x 7%" x 8%"

Balkite Model J Charger, Full Rate and Trickle Charger

Charging Rates

High Rate, 2% amperes Low Rate, % ampere


Balkite Model N Trickle Charger, Trickle Charger

Charging Rates High Rate, .8 ampere Low Rate, .5 ampere


Balkite Model K Trickle Charger, Trickle Charger

Charging Rate, .5 ampere Consumption: watts 15 Dimensions: 234" x 5%" x 5%"

Previous Models Balkite BY, "B" Current Supply.

Output 150 volts 40 milliamperes

Voltages, 150, 135, 90, 67% and 45 or 22% Consumption: watts 17 Dimensions: 4%" x 12%" x 83/"

Balkite BX, "B" Current Supply. Output

135 volts 30 milliamperes Voltages, 135, 90, 67% and 45 or 22%

Consumption: watts 12 Dimensions: 4%" x 8U" x

Balkite Combination, Model "KX", "B" Current Supply and Trickle Charger.

"B" Output 135 volts 30 milliamperes

"B" Voltages, 135, 90, 67% and 45 or 22% "A" Charging Rate, 0.5 ampere Consumption: watts 17 Dimensions: 13%" x 4%" x 8%"

Balkite "B", Model D, "B" Current Supply. Output

90 volts 20 milliamperes Voltages, 90, 45 or 22%


Balkite BII, "B Current Supply. Output

90 volts 40 milliamperes Voltages, 90, 45, 22%

Consumption: watts 10

Balkite

Balkite

Model H Charger, High Rate Charger. Charging Rate, 2% amperes


Model A Charger, High Rate Charger. Charging Rate, 3 amperes



PAGE 1-2 BALKITE PRODUCTS

MODEL H - J Chargers MODEL K - N Chargers

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SCAWIDLE ATTAGKM PU16

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PAGE I-8 BALKITE PRODUCTS

MODEL A.6 MODEL BX

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PAGE 1-2 BRANDES

MODEL B-10 Voltage BRANDES PRODUCTS CORP.

Input Voltage 115 Switch 110-120 Side

Tube No.

T}pe 1

Tube Position of Tube

A Volts

B Volts

C Volts

Normal Plate MA

Plate MA Grid Test

1 ' 27 1st R.F. 2 88 3 4.3 8.

2 ' 27 2nd R.F. 2 88 3 4.3 8.

3 ` 27 3rd R.F. 2 88 3 6. 9.2

4 ' 27 Detector 2 36 3 3. 3.1

5 ' 27 1st Audio 2 88 3 5.3 8.2

6 71A 2nd Audio 5 164 35 20. 30

7 ' 80 Rectifier 5

The above readings are the average and may vary due to differences in line voltage, variation in tube characteristics, etc.

The readings are given merely as a guide to work from.

Models B10, Bl 1, B12

1 ROFO O

2 RF SECT

'27 77 '60 TOFIL.80 TOFIL.`71-A 2AF 1R yO

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BRANDES PAGE 1-3

MODEL B-16, B-16 BRANDES PRODUCTS CORP.

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PAGE 14 BRANDES

MODEL B-15, B-16 BRANDES PRODUCTS CORP. Voltage and Data

Mlvtchea spoT on ba5Q 7rc (nr)

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POWER TRANSFOR.NEER CONNECTIONS FOR LATE MODELS

BRANDES Models 15 and 16 Line Voltage 112 -Volume Control Position Max *Grid leak not shorted.

O,... .u.. : .... .,.., o:.. ..,.. m ,., vet ó 0.. 0.11C..041

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227 3rd NF 2.3 94 80

2.2 90 2.5 - 5.6 10s0 y{ 227 tat. 2.3 2.2 24 0 - 1.3 1.3 - 227 1.t A 2.3 95 2.2 65 3 - 3 4.6 1.2 -

245 2nd A 2.4 210 2.3 190 36 - 16 21 3 -

, 2A5 2nd A 2.4 210 2.3 190 36 - 16 21 3 -

, 260 - 5 - 4.8 - - - 100 - - -

Resistor Diagram

Condenser Block

The above voltage table shows '45 type tubes in the output stage. When '71s are used, the filament voltage without the tubes in the sockets is 4.5 and the plate voltage under similar conditions is 200. With the tubes in the sockets the filament voltage is about 4.5, the plate voltage about 187, grid bias, 36 volts and plate current about 20 me.

B-15. B-16

C-227 O Lett. F.

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Cx-346 O SN A.F. C-327 O 7r+ ti.r.

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B. -T. PAGE 1-1

VOLUME' CONTAYl1

BREMER-TULLY MFG. CO

B -T 7-7E! i5.5UE L3

LqC U/'I E CdVTR AL CHANGED 2-.000ZS CüWDENSER3 ADDED IN AUDIO.

uxd2c Uxzzc

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PAGE 1-2 B. -T.

MODEL 7-70 Power Converter

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227 Detector 2.1 60 0 - 2 - -

227 let.A.F. 2.1 150 8 - 5 8 3 171A Fush-Pu11 4.9 150 18 - 18 E1 13

7-70, 7-74 M, 7-71P (A.C.)

C-327 CX-371A CX-380

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B. -T. PAGE 1-3

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CX-381 CX-326 CX-326 CX-326 CX-326 C-327 CX-310

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PAGE 14 B. -T.

o o O

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B. -T. PAGE 1-5

TO SWITCH

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MODEL 6-40 Converter

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PAGE 1-6 B. -T.

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B. -D. PAGE 1-1

ANTENNA

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PAGE 1-2 B. -D.

MODEL 69 BROWNING - DRAKE CORP.

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B. -D. PAGE 1-3

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BRUNSWICK PAGE 1-1

BRUNSWICK RADIO CORPORATION P.4ODE;_, Radiola SUpeoY'}ì(j t t7 'UCiy71A

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BRUNSWICK PAGE 1-3

BRUNSWICK RADIO CORPORATION MODEL PR -6

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BRUNSWICK PAGE 1-5

BRUNSWICK RADIO CORPORATION MODEL 6 Tube

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BRUNSWICK RADIO CORPORATION MODEL 8 Tube

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MODEI, RPA-5A BRUNSWICK RADIO CORPORATION

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BRUNSWICK PAGE 1-9


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BRUNSWICK PAGE 1-11

MODEL 3 KR8 SPU Chassis BRUNSWICK RADIO CORP.

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PAGE 1-12 BRUNSWICK

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PAGE 1-14 BRUNSWICK

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BRUNSWICK PAGE 1-15

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PAGE 1-16 BRUNSWICK

MODEL 5 NO SPU Chassis

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BRUNSWICK PAGE 1-17

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PAGE 1-18 BRUNSWICK

MODEL 3 NC8, 5 NCB

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BRUNSWICK PAGE 1-19

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PAGE 1-20 BRUNSWICK

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PAGE 1-22 BRUNSWICK

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BRUNSWICK PAGE 1-23

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BRUNSWICK PAGE 1-25

BRUNSWICK RADIO CORPORATION MODEL RPA-3A MODEL RPA-4A

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PAGE 1-26 BRUNSWICK

(' MODEL RPA-G y MODEL PR -G BRUNSWICK RADIO CORPORATION

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BRUNSWICK PAGE 1-27


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PAGE 1-28 BRUNSWICK

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BRUNSWICK PAGE 1-29

MODEL S -14,S-21, BRUNSWICK RADIO CORPORATION S -31,S -81,S-82 AC

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PAGE 1-30 BRUNSWICK

MODEL S -14,S-21,5-31 S -81,s-82 Radio

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BRUNSWICK PAGE 1-31

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PAGE 1-32 BRUNSWICK

MODEL S-14, S-21 S-81, S-82 AC 25 cycle AF Schematic


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BRUNSWICK PAGE I-33

BRUNSWICK RADIO CORPORATION MODEL S-14, S-21

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PAGE 1-34 BRUNSWICK

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PAGE 1-2 CONTINENTAL

MODEL "Slagle" 10 29-A and B with 171A Power Pack. Schematic


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CROSLEY PAGE 1-1


PAGE 1-2 CROSLEY

MODEL 4-29 MODEL RFL 60,76 Schematic CROSLEY RADIO CORP.

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PAGE 1-4 CROSLEY

MODEL 401 MODEL 401-A Schematic

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CROSLEY PAGE 1-5

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Removing Indicator Dial And Replacing Belts. 1. Take out three screws attach-

ing indicator dial to center pulley and remove dial.

2. Loosen screws which control tension of belts and take off belts. If center tuning condenser is to be replaced, remove also center pulley.

3. Replace in reverse order, being sure to put belts on pulleys with pulley drive pins through belt holes.


PAGE 1-6 CROSLEY

MODEL 602 A.C. Power Converter for MODELS 104,105 ,106 Schematics

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PAGE 1-8 CROSLEY

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Regeneration. 1. Regeneration is secured by

means of a small variable condenser connecting the detector plate to the plate of the second r. f. tube. The amount of regeneration may be controlled by adjusting this coii- denser.

Alignment of Tuning Condensers

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CROSLEY PAGE 1-9

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O Ott

R F TRANSFORMERS MERSNON CONS ux IIIA 1ól"F 92503.200 m FIL POT 2200 OHMS JI000 OHMS OHMS 1 Z3

Ist A.F RECTIFIER

OET TIME TRANS. SOCKET I GRID CONC.

UX226FIL. POT TM.F óM.F ANDGRID LEAK 0.625 ore 5 iOM.F 6000004 -Ms

Balancing.

With the set in operation, slightly adjust the angles of the radio -frequency coils until the set

does not oscillate at any point 'in its

wave length range or until the sensitivity is improved. The first

coil toward the front of the set is

the most critical to this adjusting operation, the second coil next

while the third coil seldom needs to be touched.

In making these adjustments, al- ways replace the lid before checking the operation.


PA(;E 1-10 CROSLEY

MODEL 704 MODEL 704 Power Unit Schematic MODEL 704-A Voltage

CROSLEY RADIO CORP.

..)W2000 1Ñó

ego n9

kS .íW .$'Oo '

14, 1?3J1Q9t9t,---'

11, 112119,11,99J--

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Tube Fil. Vol. Plate Vol. Grid Bias. Plate Cur.

RF 1 1.3 98 3. 7. ma

RF2 1.3 98 3. 7.

RF3 1.3 98 3. 7.

Det 1.7 42 - 2.5

AF1 1.3 95 5. 3.2

AF2 4.8 159 35. 17.

Rec. 4.5. Voltage Data For Crosley 704-9A

0+-


CROSLEY PAGE 1-11

o

CMASS S

CROSLEY RADIO CORP MODEL 704-A Schematic, Bottom View

1.. aaó uii9

Ì3

3

DIJO t aa) . .1n6 Ea lii /

nÇ'ROLA o W.O00AR[S.

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TEAMWAL MRIP 31.1460

o o o o

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RF

ANTENNA COUPLING COIL

CONDENSER 1/e M E. W9233

Ill RE TRANSFORMER

2 RE.

2d R E TRANSFORMER

460 C1

RESISTANCE

POTENTIOMETER Q E O tat A.F TUBES

2200 fl RESISTANCE

OV@Ir

RECEIVER

YT ,P A

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P TAP YELLOW STRANG..

O n0RMER 0 W FEOS Mnir[ Ru89iA .4969 704-55 L- w

CABLO 6 PC06 B 4730

BALANCING CONDENSERS lat 2d 3d POWER

SWITCH

GROUND

ANTENNA OUTPUT TUBE

POTENTIOMETER

BOTTOM

RECTIFIER TUBE PANEL

ALIGNING CONDENSER

2 A.E

2 SECTION CONDENSER W4232

/.005 MYE BY-PASS CONDENSER

-GRID LEAK 8 CONDENSER

T-1 A.P --DETECTOR

CIRCUIT, MODEL 704-A

3d RE TRANSFORMER

3250 n RESISTANCE

bMRSNON CONDENSER

Y. Ì COWl MUSICONE TERMINALS W4919 110.000(1 RESISTANCE

POWER LINE CHOKE COIL GROUNDING COND

VIEW, MODEL 704-A CHASSIS

NOTE:-This service sheet applies to all Jewelbox Model: 704 sets having seven tubes, including rectifier (single output tube only) num- bered from GJD 16,000 to 21,000.

Models 704 Jetvelbo .704A Jesvelbo.

RECT

O '80

2 RF 3 RF DET 1 AF

O O O O '26 '26 '27 '26

1 RF 2 AF

O PILOT 6.0 V. O '26 716

FRONT


PAGE 1-12 CROSLEY

MODEL 704-B Schematic, Bottom View Voltage

CROSLEY RADIO CORP.

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1

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ANTENNA COUPLER COIL ALIGNING CONO.

BALANCING COND 1hM.F: CONO. W4233 GRID COPIO. ANO LEAK

1ST R.F. TRAN 2ND R.E TRANS.

4600 RES. 71W4895 2RF.

1RF. 2RS, 1A.F. ANC)2A.F. POT.

STRIP 11001. RES. 71W525-5

POWER.TRA S OUTPUT POT STRIP 3R.D F. TRANS. GROUNOI ONO. 1./4973

10.00011 RES W4921 '/zN.F OND.W4919 OWER. CHOKE

BOTTOM VIEW, MODEL 704-B CHASSIS

.003 MF. BY PASS COND. W 4922

15r AND 2ND AUDIO TRANS.

60.000 0. RES. W49 23

1A.F PUSH -PUL. OUTPUT

MERSHON GOND.

325012. RES. 71 W 4900

Alignment of Tuning' Con- densers. 1. A small auxiliary variable

condenser shunted across the detector tuning condenser serves as a means of aligning the tuning condensers so that they "track" together.

Model 704B Jewelbox

RECT

O 2 AF 2Z2F 3 RF - - 1 AF

O o O o 0 '26 '26 '71A '71A '26

1 RF PILOT 6.0 V. PET

o o '26

FRONT '27

Line Voltage 117.5-227 Emitter Based 11 Volts Nega- tive with Respect to Filament. Detector Grid Test Made with Grid Leak Shorted

TW[

Oit. TT.(

TO.[

M4T,W OT

TV« I.T.O.,.O[T..[TO.

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T

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246 let.R.F. 1.6 160 Z.5 'I50 21.0 .6.D 12.0 5.5 226 ?nd.R.F. 1.6 160 1.5 150 11.6` 6.5 13.4 6.9 226 3rd.R.F. 16 160 2.5 150 11.6' 6.5 13.4 6.9 2¡L'1 Detector 2:60150 3.25 30 0.6 2.2 2.75 .55 226 1st.A.F. 1.6. 220 1.5 320 9:6 6.2 13.0 1.8

.. .2.716 2nd.A.F. 5f3. 1E5 6.0 370 37.5' 20.0 23.0 3.0 171A -2nd.A.F. 5.3 185 -5.0 "i70 37.5- 80.0 °3.0,3.0

' 280 Rectifier/5.3 4.9


CROSLEY PAGE 1-13

CROSLEY RADIO CORP.

CIRCUIT. MODEL 705

PUSH-PULL INPUT TR NS 2-t. M.F. COND. VIA M.F. COND, WS496

BIAS RES. 71W 396 A TENNA CHOKE BALA CE COND.

PUSH-PULL OUTPUT

LINCHA H FILTER. CHOKE -

LINE HASH FILTE CONO. N 4-979 OUTPUT TRAN

FILAMENT FILTE CHOKE 71WS419

UNE HASH° FILT CHOKE

PLATE FILTER CHOKE W 3-39

MERSHON CoNO. 20.000.2

ti F. COND.DET. PLATE GIRCUI

RE AN

M ROLA TERM.

ANTENNA GROUND

2A.r 100,000n2ES. W.739 R.

lAF R.E

A.F.TRANS.

32.F.

ONO. W 6383

6 IO COND.

TRIP ieVLFCONO RID LEAR

BOTTOM VIEW, MODEL '705 CHASSIS

FILTER CHOKE

OUTPUT TRANSFORMER

MERSHOIV CONDENSER.

AUDIO TRANSFORMERS

RADIO -FREQUENCY TRANSF'. ERS

TUNING CONDENSERS

OUTPUT / INPUT TRANS. VOLUME CONTROL

DYNACONE FIELD TERMINALS MEROLA TERMINAL

REAR VIEW, MODEL 705 CHASSIS

DET.

3 R.F.

1A.F,

2R.F

2 A.F.

NTENNA

GROUND

MODEL 705 Schematic, Bottom and Rear View

Models 705 Showbox (DC), 61, 62

2 AF 0 1 RF 3AF '71A O - --

'01A 2 RF

0 '01A

I AF 3 RF

0 O '01A '01A

DET

O O '71A '71A

PILOT 6.0 V.

O '01A FRONT

Repairing and Replacing Parts

Replacing Parts.

1. In replacing parts on Model

705 the bottom must be removed.

Tuning Condensers.

1. The complete condenser gang

should be removed and replaced as

a unit. 2. Take off knobs and remove

leads from pilot light socket and

volume control first. Next remove

switch from holder. Then unsolder

condenser leads and remove assem-

bly. Replace in reverse order.

Radio -Frequency Transformers.

1. Unsolder leads first. Then re-

move shield can. Finally take off

transformer coils. Replace in re-

verse order.

2. Mark all leads and terminals.


PAGE 1-14 CROSLEY

MODEL 706 Schematic,Voltage Bottom View,Notes

Aö v'

CROSLEY RADIO CORP.

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51

CROSLEY- 706 Line Voltage 117.5-227 Emitter Based 11 Volts Nega- tive with Respect to Filament. Detector Grid Test Made with Grid Leak Shorted

..... "27 12.3-375 226 let.R.F. 1.6 160 1.5 r50 11.0 6.5

226 2nd.R.F. 1.6 160 Ili 5 '150 I .0 6.5 13.4 6.9 t26 31,1.1.F. 1.6 '150 .5 --In 11.a- 6.5-13.4 6.9 127 Detector 2.50 150 2.2-5 0.9 2.2 2.75 .55 226 7ct.4.F. 1.6 220 1.5 "1-r40 9.6 6.2 8.01 a l'/1A 2nd,A,F, 5.3 -135 5.0 270 27.5- 20.e 25.0 3.0 171A 2nd.A.F. 5.3

5-.3 155 5.0 170 37.5 20t0 2.3.0 3.0

, '280 Hectilier 4.9 _'

PF. GRIDCOND.

DE, AND LEAK

1 A.F

DET. PLATE' BY-PA55 COND.

W 4922

22F

PU511-PULL OUTPUT

SqF

DOUBLE '/: h1.E COND. 1 n E COND. 2E ANC/1,4e W 4232 W 4015 BIAS 2E5.

Y:nFCOND. W49i9

RF ANDIA.E POWE2 FIL. POT. C108E

G"e.[ +.

325011 21 PLATE 2E5.

10,000 R 1 A.E PLATE 625.

NE25HON CONDENSER

OUTPUT CHOKE'

H,ECOND. W 4919

POWEq T2ANSPORnER

/ , ODOR DET. OUTPUT OUTPUT )1, ri Er GROUNDING BALANCE /,i //t PLATE 2E5 FIL. POT. SIAS. 2E-5. CONDE -N52-2

CONDENSER5 / 2.E TRANS- ANT RNA 2ECTIFIEE TUBE DYNACONE

F0211225 CHOKE AND FUSE PANEL FIE -LO TERMINALS

BOTTOM VIEW, MODEL 706 CDA'SSIS

w -0ó V.Mf

ilru.twe,.n_{°::4`. 2tCvto- IIeJti

Models 706 SI owboc,

2 AF

O 1 RF '71A 0 O '71 A

'26

2 RF

RECT

O '80 o

'26 3 RF

O PILOT '26

AF DU'

'26 O

O FRONT

6.0 V.

Audio -Frequency Transformers. 1. Both audio transformers are

mounted in a single can. They must be removed as a single unit.

2. Unsolder leads. Remove nuts holding assembly in position and take off transformers. Replace in reverse order.

Tuning Condensers. 1. The complete condenser gang

should be removed and replaced as a unit.

2. Take off ' knobs and remove leads from pilot light socket and volume control first. Next remove switch from holder. Then unsolder condenser leads and remove assembly. Replace in reverse order.

Radio -Frequency Transformers. 1. Unsolder leads first. Then re-

move shield can. Finally take off transformer coils. Replace in reverse order.


CROSLEY PAGE 1-15

CROSLEY RADIO CORP.

6L COHDFMtC WU. COMFM[i l SAL CeNOFN3F2 W e910 W 9a0 N4710

RECT

o '80

Mn, .. C)1T

'718 I RF 3 RF

'27 PILOT '27 6.0 V.

RECTIFIER DAY, t MF 50000 are TUSE COND W 556) IN 550 OHMS

Iv 2F TRANS (ANTENNAI

F RONT

ER CHORE 2.9. SAL CON(' OUTPUT C iOKE 8.8.Aí ... AF TRANS e.. RF TRANS '650008115 TRANS 3..RF TRANS]

CROSLEY-Model 804 Line Voltage 117.5 -Set on High Volt Tap -Volume Control Position Max

reMe

'e.ö. ..[

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227 Det. ' 2.45 150 2.20 1.50 22 12 0.2 0.25 .05 - 227 lot AF 2.45 225 2.20 184 13 12 5.2 8.0'. 3.8 - 1714 254 AF 5.2 200 5.10 180 40 - 18 25 7.0 -

, 171A 2nG AP 5.2 200 5.10 180 40 . 18 25 7.0 - 280 Ric t. 5.0 - 4.8Q - -

_

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MODEL 804 Schematic,Voltage Bottom View,Notes

ftºaaººaºººabººeº«00ºº0, ,ººaaº ºmºº, ,!MOW

700o3ana,,,, O.E an.Or<.,r

100.000 OHMS

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3,. 6AL.COND

ALIGNING COUD

PLATO CISOKC

.00025 MI

3 MEG.OHMS

20.000 OHMS

1 v O-T.T)19 e.ems

120. ]i -7.W.)96

Alignment and Balancing. 1. A small, adjustable, aligning

condenser is shunted across the detector stage tuning condenser fur aligning the tuning condensers controlled by the station selector.

2. Small, adjustable neutrodyne condensers are provided for balancing. Follow the instructions for balancing given on page 4, "Crosley Service Manual." Insulate one of the heater prongs, not the emitter. Do not use headphones.

Connections. 1. Follow the connection diagram

shown herewith. A small lead near the antenna terminal is provided in order to adjust the set for best operation with different types of aer- ials. For average operation with an average antenna, this lead should be inserted in terminal "2" at the rear of the chassis. For greatest sensitivity, inset the lead in terminal "1", and for greatest selectiv- ity in terminal "3".


PAGE 1-16 CROSLEY

MODEL TRIRDYN MODEL 51 MODEL 5-38 Schematic

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CROSLEY PAGE 1-17

MODEL BUDDY, CHUM Schematic, Voltage

"BUDDY and CHUM"

Filament R.F. A.F.

Voltages On Full

and Detector tubes 2.4

and Rectifier tubes 4.8

Plate Voltages All tubes but Rectifier 170

Rectifier tube 250 Iffl

Control Grid Voltages

R.F. tubes Detector tube A.F. tubes

we me «II

CROSLEY RADIO CORP

VOLTAGE LIMITS

Models Buddy, Chum

AF

1 RF

0 0 '71A '24A

2 RF

o o L '71A '24A

CET

0 '27

FRONT

REC'

o '80

The above readings are to be taken with

the receiver in full operating condition,

with the volume control on full, and

with a line voltage of 117.5 when the Volume Control fuse is in the "High" position or of

107.5 when the fuse is on the "Low" position. In the case of 220 volt re-

ceivers, the line voltages should be

respectively 235 and 215. Measure plate

and grid voltages with a high -resistance

D.C. voltmeter (at least 800 ohms per

volt.) These voltages are to be measur-

ed from the plate or grid socket contact

to the emitter contact or negative fila-

ment contact, unless otherwise noted in

the table. The contacts must be reaohed

from the bottom of the receiver (unless a

set tester is used) with tubes, dial

light, and speaker in place. Use a law -

range A.C. voltmeter to measure the fila-

ment voltages.

each

2.8

12.0 16.0

38.0

Screen Grid Voltages

R.F.tubes 85.0


PAGE 1-18 CROSLEY

MODEL AC -7 AC -7C

CROSLEY RADIO CORP.

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PAGE 1-20 CROSLEY

MODELS 30S,313,33S,34S Schematic, Voltage,Notes

CROSLEY RADIO CORP.

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CROSLEY PAGE 1-21

ANTENNA

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CROSLEY RADIO CORP. MODELS 40S,41S,42S,82S Schematic,Voltage

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IF V FIFE or

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15 1,5

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- 245 2nd AT 2.55 265 8,30 240 48 - 26 30 4.0 280 R.ot. 5,60 - 5.00 - - 100 - - -

Models 40-S, 41-S, 42-S, 82-S

2 AF SECT ---- 3 RF 2 RF 1 RF 0 0 0 0

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Types G,H,J,M Red and Blaok leads to

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to speaker output transformer,

Third Type of Volume ControL FRONT


PAGE 1-22 CROSLEY

MODELS 41,41A,42 Schena.tic,Voltage

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120 1-70

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CROSLEY PAGE 1.23

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Circuit Diagram Model 48

Voltage Limits To be measured with tubes in place, speaker

connected, and line voltage of 1171/2 (235 for 220 volt receivers. Measure plate and grid voltages with a high -resistance D. C. volt -meter (600 ohms or more per volt) from plate or grid socket contact to emitter contact. Use a low -range A. C. meter to measure filament voltages.

Filament Voltages All tubes but rectifier Rectifier tube

Plate Voltages R. F. amplifier tubes Detector tube A. F. amplifier tube Rectifier tube

Screen Grid Voltages R. F. amplifier tubes Detector tube

Control Grid Voltages R. F. amplifier tubes Detector tube A. F. amplifier tube

2.3 to 2.5 4.6 to 4.8

160 to 190 105 to 125 125 to 155 220 A. C.

80 to 90 40 to 50

2.5 to 3.1 6.0 to '7.0 25 to 35

Model 48

RECT

0 20

2 RF DET AF

O o 0 24A 24A `15

1 RF

o 244

FRONT

Installation Notes Because of the low sensitivity of this chassis

it is better to use a comparatively large.aerial with it if possible. A good ground should, of course, be used.

One must be careful in inserting the speaker plug not to force it in when the prongs are improperly lined up with the socket holes.

This model employs the following tubes: two -24 screen grid amplifiers, a -24 screen grid detector, a -45 power output amplifier, and a -80 rectifier.


PAGE 1-24 CROSLEY

MODEL 53,54,57 Schematio,Voltage CROSLEY RADIO CORP.

Circuit Model 53 (see note below regarding

Circuit, Models 54 and 57 Model 54 circuit differs from that shown in

the diagram in the following particulars: The "PH" terminals are between the r. f. trans former coil and the 0.1 m. f. condenser, instead of between this condenser and ground, as shown. The triple unit condenser near the center of the diagram has values, from right to left, of 0.1, 0.1, 0.5 niicrofarads, instead of those shown. There is no dial light on Model 54.

Model 57 differs in circuit from the above description in the following particulars: An additional condenser of 0.25 m. f. capacity is shunted across the filter choke. The primary of the speaker output transformer is connected in the position in which the speaker field is shown in the above diagram. Instead of being connected to the 1650 ohm resistor through a condenser, as shown in the above diagram, the bottom speaker terminal is connected to ground. The speaker field is connected from this grounded terminal to the middle speaker terminal on the diagram, so at current from the positive "B" circuit H s through the speaker field to ground. A fixed condenser is shunted across the 1650 ohm output biasing resistor.

Modele 53E, 53F, 53M, 57V

Models 54 and 57)

Voltage Limits Filament Voltages

R. F. and Detector Tubes 2.1 to 2.3 A. F. Tube 2.2 to 2.4 Rectifier Tube 4.T to 4.3

Plate Voltages R. F. Tubes 160 to 180 Detector Tube 215 to 245 A. F. Tube . 230 to 260 Rectifier Tube (A. t2. Voltage) 340 to 370

each plate

Control Grid Voltages R. F. Tubes 3.1 to 3.5 Detector Tube 9.0 to 10.0 A. F. Tube 45.0 to 50.0

Screen Grid Voltages R. F. and Detector Tubes 85 to 95

Approximate Plate Current Values R. F. Tubes 0.0032 Detector Tube 0.00035 A. F. Tube 0.0335 Rectifier Tube 0.045

To be measured with speaker connected, tubes in place, and line voltage of 117y2 (235 for 220 volt receivers) with fuse in "High" position or of 1074 (215 for 220 volt receivers) with fuse in "Low', position. Measure plate and grid voltages with a high - resistance D. C. voltmeter (600 ohms or more per volt) from plate or grid tube contact to emitter contact, except in the case of the grid voltages of the detector . and audio tubes, which should be

measured from the emitters to the chassis. The filaments of the output and rectifier tubes serve as the

I RF

o 'z/A

2 RF

o

PILOT 2.5 V.

emitters, while the other tubes have heaters and separate emitters. Measure filament voltages with a low -range A. C. voltmeter.

'24A Black 0 Orange ....3 Violet 7 DET

o AF

o RECT

o Brown ....1 Yellow ....4 Gray .. 8 '24A '45 Red 2 Green 5 White 9

FRONT Blue 6 For example, a resistor with orange body

color, green end color, and a red dot has a resistance of 3500 ohms.


CROS LEY PAGE 1-25

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CROSLEY RADIO CORP.'

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Model 56

RF

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Screen Grid Voltages (Vorme Control On)

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PAGE 1-26 CROSLEY

MODEL 55 MODEL 56 Parts Lists

CROSLEY RADIO CORP.

Parts List Model 55 INSTRUCTIONS FOR ORDERING -Give part number, description of part, and serial number of receiver

on which part is to be used. If article wanted is not listed separately, then that part of complete assembly containing this article should be ordered. Goods shipped on open account to Crosley Wholesale Distributors only. Cash must accompany Dealer and Consumer orders. Prices are subject to the usual trade discounts

Qty. Part No. Description List Price Each

Qty. Part No. Description 1

List Price Each

1 D-21761 5 W-7871

Chassis Socket (4 Prong)

2.00 .25

2 1

W-5382 W-6471

0.00025 Mfd. Fixed Condenser .35 0.1 Mfd. Fixed Condenser (2

5 2

1W-7874 W-21322

Socket Guide R. F. Transformer

.10 2.50 1 W-5469

paper) 1.00 Resistor 100.000 ohms (brown,

1 W-21323 R. F. Transformer (Ant.) ... 2.50 black, yellow spot) .60 3 W-21739 Grid Connectors .25 W-21237 Resistor 60,000 ohm .60 3 B-21174 R. F. Coil Shield .50 1 W-6434 0.02 Mfd. Fixed Condenser .60 1 W-20558

W-20536 Volume Control

j Variable condenser gang 1.75

18.00 1 W-20940

W-5713 Resistor Assembly 1.00 Mounting Strip .25

1 W-20981 Spider .30. W-4921 Resistor 10,000 ohms .60 1 W-7154 Dial Gear .15 i W-4362 Plate Choke .50 1 W-5596 Set Screw .05 1 W-7753 i 0.1-0.5-0.1 Mfd. Fixed Con- 1 W -5354D Dial Indicator .25 denser 2.00 1 W-4899 Pinion .35 i W-4013 11. Mfd. Fixed Condenser (2 1 W-20594 Pinion Bracket (inner) .15 paper) 1.35 1 W-20593 Pinion Bracket (outer) .15 i W-6471 0.1 Mfd. Fixed Condenser LOO 1 W-4907 Spring Washer .08 1 W-21754 Resistor Assembly 3.15 1 W-20722 Dial Light Bracket .25 W-21771 Mounting Strip & Resistance 1 W-20576 Power Switch .75 (45 ohm) .45 1 B-21762 Chassis Plate .15 W-5735 Resistor 150.000 ohms (brown, 1 W-20156 8 Mfd. Condenser 5.00 I green, yellow spot) 1 I W-21760 Filament drop resistor (400- W-4921 I Resistor 10,000 ohms (brown,

,60

370 ohms) 1.00 I black, orange spot) .60 1 W-21779 Filament drop resistor W-5469 Resistor 100,000 ohms (brown, bracket .10 black, yellow spot) .60 2 W-4435 Asbestos Washer .05 W-6704 Resistor 300,000 ohms (orange 1 W-20381 Filter Choke 3.25 black, yellow spot) .60 1 W-21292 Electrolytic Condenser (20 1 W-20630 Bottom Bracket .10

mid.) 2.00 1 W-6471 0.1 Mfd. Fixed Condenser (2 1 W-21752 A. F. Transformer 5.00

1 W-21751 paper)

Resistance Assembly (45-30 1.00

PARTS UNDER CHASSIS j ohms) .40 1 W-21798 Junction Block .10

1

1

W-6471

W-21109

j 0.1 Mid. Fixed Condenser (2 paper)

Resistor Assembly 1.Ó0

1.00

1

1

W-6471

W-20883

0.1 Mfd. Fixed Condenser (2 paper)

Terminal (A. G & P H.) 1.00 .50

W-5713 Mounting Strip .25 1 W-21763 Speaker Terminal Socket .40 W-5370 Ressitor 20,000 ohms (red, 1 B-6867 Cable 1.50

black, orange spot) .60 1 C-21581 R. F. Shield Assembly 1.25 1 W-21237 Resistor 60,000 ohms (blue,

black, orange spot) .60 1

1 C-20658 W-20167

Chassis Bottom Knob (large)

.50 .40

W-20482 Knob (small) .35

Parts List Model 56

Qty. Part No. Description List Price Qty. l Part No. Description 1 List Price 1 5

C-21900 W-7871

Chassis Socket (4 prong)

Each 1.75

.25 1 1

I

W-6434 W-7753 1

0.02 Mfd. Fixed Condenser .... 1.1-0.5-0.1 Mid. Fixed Conden-

Each .60

5 1

W-7874 W-20558

Socket Guide Volume Control

.10 1.75 1 W:4013

ser 1. Mid. Fixed Condenser (2

2.00

1

1 W-21752 W-21760

A. F. Transformer Filament Drop Resistor (400-

5.50 1 W-21237

paper) Resistor (00,000 ohms) Blue,

1.35

370 ohms) 1.00 black, orange .60 1 W-21779 Pilament Drop Resistor 1 W-5469 Resistor 100.000 ohms Brown, 2 W-4435

Bracket Asbestos Washer

.10

.05 1 W-21237 black, yellow

Resistor (60,000) ohms) .60

.60 1 W-20730 Variable Condenser Gang 18.00 3 W-21127 Stiffened Sleeving (3-8"x2") .05 1 1

W-20981 W-22093

Spider Dial

.30 .25

1 2

W-20873 W-6471

Bottom Bracket 0.1 Mid. Fixed Condenser (2 j

.10

1 W-22094 NV -20977

Dial Strip Dial Band

.25

.20 1 W-21895 paper)

Fixed Resistance Assembly 1.00 2.50

W-21322 R. F. Transformers 2.50 W-21771 Resistance and mounting 1 NV -21223 It. F. Transformers (antenna) 2.50 strip (45 ohms) .45 3 W-21739 Grid Connectors .25 W-5735 Resistor 150.000 ohms (Brown, 3 VJ -212.57 R. F. Coil Shields 50 green, yellow) .60 1 C-20871 R. F. Shield 1.25 W-6704 Resistor 300,000 ohms (Or- 1 1

W-20576 NV -22090

Power Switch Dial Light Bracket

.75

.25 W-4921 ange, black, yellow)

Resistor 10,000 ohms (Brown, .60

i

1 1 i

W-21901 W-20381 W-20156 W-21763

Chassis Plate Filter Choke Condenser (8 Mid. 2 paper) Speaker Terminal

.15 3.25 5.00

.40

1 W-21894 W-6028 NV -4921

black, orange) Resistance Assembly Mounting Strip Resistor (10,000 ohm Brown,

.60 2.35 .30

i W-20883 Terminal A. G. & PH. .50 black, orange .60 W-5469 Resistor (100,000 ohm) Brown,

PARTS UNDER CHASSIS black, yellow .60 W-5370 Resistor (20,000 ohm) Red,

1 W-21893 Fixed Resistance (30 ohm) .. .40 black, orange. .60 i 1

W-2189'2 W-20188

Fixed Resistance (45 ohm) .. 0.1 Mfd. Fixed Condenser ....

.40

.60 1

1 W-21292 B-21491

20 Mfd. Condenser Cable

2.00 1.50

1 NV -4362 Plate Choke .50 1 C-20872 Chassis Bottom .50 2 NV -4924 0.00025 Mfd. Fixed Condenser .35 2 W-20482 Knob (Small) .35 2 W-6471 0.1 Mid. Fixed Condenser (2 j

paper) 1.00


CROSLEY PAGE 1-27

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CROSLEY RADIO CORP.

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MODEL 58 Schematic Parts List

ye` dbudsSN

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Af S 1/Ar[K A.-6 5oar,/

A3CAsce 6/u/6 252/49/

DET 2 RF I RF

O O O '21A '21A '21A

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W/10/43D/9G,rAmfoe //TooFL SB

Circuit Diagram Model 58

For Voltage Data See Model 54

Parts List -Model 58 INSTRUCTIONS FOR ORDERING -Give part number, description of part, and serial number of receiver

on which part is to be used. If article wanted is not listed separately, then that part of complete assembly containing this article should be ordered. Goods shipped on open account to Crosley Wholesale Distributors only. Cash must accompany Dealer and Consumer orders. Prices are subject to the usual trade discounts.



1 W-21569 Chassis 1.75 PARTS UNDER CHASSIS. 3 W-7873 Socket (5 Prong) .30 .1 W-5669 25 -25 ohm Resistance .40 2 W-7871 Socket (4 Prong) .25 1 W-20550 1650 ohm Resistance .35 1 W-21518 Speaker Socket .40 1 W-5943 .1 Mfd. Fixed Condenser 1.10 4 W-7874 Socket Guide .10 2 W-4924 .00025 Mfd. Fixed Condenser .35 1 W-21297 Socket Guide (280) .10 1 W-4362 Plate Choke .50 1 W-20883 Terminal Board (A. G. & Ph.) .50 1 W-6434 .02 mfd. Fixed Condenser .60

Y W-20558 Volume Control 1.75 1 'W-4013 1. mfd. Fixed Condenser ........ 1.35 1 W-20381 Filter Choke 3.25 1 W-20449 .5 -.1 mfd. Fixed Condenser 1.25 1 W-4943 Mershon Condenser 4.25 1 W-7753 .1 -.5 -.1 mfd. Fixed Conden- 2 W-5033 Condenser Clamp .15 ser 2.00 1 W-4946 Condenser Cap .25 1 W-4968 .5 mtd. Fixed Condenser 1.20 1 w-20730 Variable Condenser Gang 18.00 1 W-21955 3230 ohm Candohmn Resist - 1 W-22090 Dial Light Bracket Assembly .40 anc.: (2 Section) .80 1 W-22095 Dial Drum Assembly ......_.... .80 1 W-21950 3160 ohm "andohm Resistance .30

W-22094 Dial Indicator Cover ......_.... ,2v 1 W-22043 Mounted Resistor Assembly 2.35 W-20977 Dial Band .20 W-20099 Mounting Strip .30

2 W-21322 R. F. Transformer 2.50 W-5735 150.000 oh Resistor .60 1 W-21323 R. F. Transformer (Antenna) 2.50 W-5370 20,000 oh..2 Resistor .60 3 W-21739 Grid Connector .25 W-0700 25,000 ohm Resistor .60 3 mr-21237 R. F. Coil Shield .50 1 W-22052 Mounted Resistor Assembly 3.00 1 W-20576 Power Switch .75 W-20099 Mounting Strip .30 1 W-22025 Power Transformer (110 V. W-4921 10,000 ohm Resistor .60

60 Cycle) 13.00 2 W-20464 1 Meg. Resistor .60 2 W-21507 Tie Straps .10 W-7335 440 Ohm Resistor .60 1 C-20871 R. F. Shield 1.25 1 B-21491 Cable 150

1 C-20872 Chassis Bottom ,50 1 W-20873 Bottom Bracket -10 2 W-20482 Knob ,35

W-7947 Knob Spring .05


PAGE 1-28 CROSLEY

MODELS 60S,61S,62S,63S Schematic, Voltage

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Filament Voltages R. F. and Detector tubes All A. F. tubes

Volume Con- trol on Full

2.6 to 3.4 4.2 to 5.5

FRONT


CROSLEY PAGE 1-29

Fil. Vol. RF and Det AF tubes

Flate Vol. RF tubes Det AF tubes

Control Grid

RF tubes Det AP tubes

MODEL 76 Schematic,Voltage Bottom View

j emro Ilmz0,1.

t6öoÖbto`

To be measured with speaker in circuit. Fuse in "high" for 117.5 lint, voltage and in "low" position for 107.5 line voltage.

IST 2ND 3RD R. F. TRANSFORMERS

PHONOGRAPH TERMINALS


PAGE 1-30 CROSLEY

MODEL 77-1 Schematic Bottom View,Notes

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Models 77A, 77B, 77L

Comparison with the circuit diagram of Model 77,

will show that the 37,000 ohih and 111000 ohm isolating resistors, and the 0.1 micro -farad Isolating condensers have been removed from the radio -

frequency circuit. In. addition a.'new type of volume control is used. located in the first stage r. f. Instead of in the audio frequency circuit. The antenna coil has a low -impedance primary, and is ,not interchangeable. with that on Model 77. These are the es- sential differences.

l('ïr POWER AND

1ST VOLUME STATION TRA

LOCAL DISTANCE SELECTOR CONTROL SWITCH

-Bottom View Model 77-1


CROSLEY PAGE 1-31

MODELS 77A,7733,77L CROSLEY RADIO CORP. Schematic ,Voltage

A.

A

0.0

e

LL

T

I R. F.

1T CHASE 13 - JULY 430

-24

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01 Kr

32000a AFYWY

2 RR

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-24 DIET.

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8

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Voltage Limits

Filament Voltages All tubes but rectifier Rectifier tube

Plate Voltages R. F. tubes Detector tube

, 1st Audio tubes Output tubes Rectifier tube (A. C. Voltage)

Control Grid Voltages R. F tubes Detector tube 1st Audio tube Output tubes

Screen Grid Voltages R. F. tubes Detector tube

2.3 to 2.6 4.6 to 5.2

140 to 160 85 to 110

125 to 150 230 to 260 250 to 280 each plate

1.6 to 3.2 2.0 to 3.2 8.0 to 10.0 45. to 65.

75 to 90 35 to 55

To be measured with speaker connected and line voltage of 117Vó (235 for 220 volt receivers) with fuse in "High" position or of 1071A, (215 for 220 volt receivers) with fuse in "Low" position. Measure plate and grid voltages with a high -resistance, D. C. voltmeter (600 ohms or more per volt) from plate or grid tube contact to emitter contact, except in the case of the grid voltage of the first audio tube, which should be measured from the emitter to the chassis. The filaments of the output and rectifier tubes serve as the emitters, while the other tubes have heaters and separate emitters. Measure filament voltages with a low -range, A. C. voltmeter.

All voltage readings are to be taken with the speaker connected and the tubes in place.

SKR

2AR

2AF

Models 77A, 77B, 77L

1 RF

, o o 2 AF

i 2 RF

` o o '15 *21A

i AF DE7 PILOT O 0 .2.5 Y.

27 21A FRONT

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Installation Notes Recommended aerial length: 50 feet or

more for outdoor aerial, 20 to 50 feet for indoor aerial.

There are three terminals at the rear of the chassis, marked "P", "C", and "S", ' for phonograph pick up devices. Instructions for connecting these in C,Qosley phono -radio combinations will be found in the instruction books accompanying the receivers. To connect other types of phonograph pick up, a single -pole double -throw switch is required. Cut the wire between terminals "P" and "C". Connect the center pole of the switch to terminal "C". Connect the end poles of the switch to terminals "P" and "S". Connect the two leads from the phonograph pick up to the switch poles which are connected to "P" and "C" (terminal "C' is grounded to the chassis). For phonograph reproduction, throw the switch so that the terminals "C" and "S" are connected together. For radio reproduction, throw the switch so that the terminals "P" and "C" are connected together. The volume of phonograph reproduction may be controlled by the volume control on the radio receiver.

If the phonograph attachment is disconnected from the receiver at any time and it is desired to obtain radio reception, it will be necessary to connect a wire from "P" to "C."


PAGE 1-32 CROSLEY

MODELS 84C, 84D Schematic,Voltage Notes

CROSLEY RADIO CORP.

Models 8442, 841)

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I RF o o 45 '21A

2 RF

o o IS '21A

1 AF 2 RF O o '27 '21A

DET

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PILOT 2.5 V

INSTALLATION NOTES

Recommended aerial length, 60 feet or more for outdoor installations; 20 feet or more for indoor installations.

Terminals are provided for phonograph pick-up devices. When such a device is connected, the wire between terminals "P" and "C" must be out. If the pick-up device is afterwards disconnected, a wire must be connected between "P" and "C" before the receiver may be operated.

To connect a phonograph pick-up a double throw, single -pole switch must be, used. Connect the middle pole of the switch to terminal "C" and the end poles to terminals "P" and "S". Connect the pick-up to the switch poles which are connected to "P" and "C", and cut the wire between "F" and "C", as described above. Throw switch toward "P" pole for radio reproduction or toward "S" pole for phonograph reproduction.

Voltage limits Filament Voltages

All tubes but rectifier Rectifier tube

Plate Voltages R. F. tubes Detector tube 1st Audio tube Output tubes Rectifier tube (A. C. voltage)

Control Grid Voltages R. F. tubes Detector tube 1st Audio tube Output tubes

Screen Grid Voltages R. F. tubes Detector tube

2.3 to 2.6 4.6 to 5.2

170 to 190 95 to 105

130 to 150 220 to 250 250 to 280 each plate

2.5 to 3.5 4.0 to 7.0 8.0 to 11.0 40.0 to 50.0

60 to 75 35 to 55

To be measured with speaker connected and line voltage of 1171/2 (235 for 220 volt receivers) with fuse in "High" position or of 1071/2 (215 for 220 volt receivers) with fuse in "Low" position. Measure plate and grid voltages with a high -resistance, D. C. voltmeter (600 ohms or more per volt) from plate or grid tube contact to emitter contact, except in the case of the grid voltage of the first audio tube, which should be measured from the emitter to the chassis.


CROSLEY PAGE 1-33

CROSLEY RADIO CORP.

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Filament Voltages R. F. and Detector Tubes A. F. Tubes

isn93 tAAPOD" a-,

MODEL 90 AUTO Schematic,Voltage

Control Grid Voltages 2.0 R. F. Tubes 4.7 Detector Tube

A. F. Tubes Plate Voltages

All Tubes but Detector 135 Detector Tube 221

CONDENSER RADIO FREQUENCY

TRANSFORMERS 1ST 2ND 3RD

0.1 M. F. CONDENSERS

RADIO FREQUENCY CHOKES

,D.1 M. F.

CONDENSERS

0.001 M. F.

CONDENSER

Screen Grid Voltages R. F. Tubes

0.1 M. F.

CONDENSERS

DETECTOR

AUDIO FREQUENCY TRANSFORMER

1 A.F. 2A.F.

2.5 3.0

12.0

300.000 / OHM RESISTANCE

6 0.000

OHM RESISTANCE

25 TO 32

OHM RESISTANCE

Model 90 Auto

2 AF 1 AF DET 2 RF 1 RF

'I2A '12A '27 .24A' '24A

FRONT


PAGE 1-34 CROSLEY T

MODEL 120 Schematic Voltage,tdote s

o

CROSLEY RADIO CORP.

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Worn

CIRCUIT MODEL 120

rs.

Voltage Limits

Filament Voltages All tubes but output and Output tubes Rectifier tube

rectifier .. 2.4 to 2.6 2.3 to 2.5 .6 to 6.2

Plate Voltages 1st R. F. and Intermediate Amplifiers Oscillator 1st Detector 2nd Detector Output Rectifier (A. C. voltage)

Screen Grid Voltages All screen grid tubes

Control Grid Voltages 1st R. F. and Intermediate Amplifiers Oscillator 1st Detector 2nd Detector Output tubes

150 to 170 16 to 25

145 to 165 135 to 155 245 to 275 260 to 290

each plate

85 to 95

2.5 to 3.5 0.5 to 1.5 6.0 to 8.0

13.0 to 17.0 50 to 58.0

To be measured with speaker connected, volume control on full, and line voltage of 117% (235 for 220 volt receivers) with fuse in "High" position, or of 1071A (215 for 220 volt receivers) with fuse in "Low" position.

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Changes In 120 Chassis Service Bulletin No. Al of March 15th

covers the A. B. J. A. series of the 120 Chassis. Sets having, serial prefix letters A. B. J. B. contain the following changes. Prices of parts remain the same.

W-2201 7 1. F. Transformer Assembly is replaced by W-2201 7-E I. F Transformer As- sembly.

W-21989 Coil Assembly is replaced by W -21989-B Coil Assembly.

W-21295 I. F Transformer Assembly is replaced by W -21295-B 1 F Transformer As- sembly.

W-2 1964 Flexible Resistor (165 ohms) is omitted.

W-21965 Flexible Resistor (375 ohms) is added.

W-21995 R. F. Transformer (oscillator) (Rear) is replaced by W-22589 R. F Trans- former (oscillator).

New type I. F. Coil Assemblies are marked with a dot of red paint.

New type R. F. Transformer (oscillator), W-22589, has five connections instead of four

To Compensate For Long Aerial With 120 Chassis

Model 120 is so sensitive that a long aerial may give undesirably great pick-up. To reduce the pick-up, connect a 0.0025 nnfd. condenser from the antenna terminal to the ground terminal of the receiver, and a 0.00005 mfd. condenser in the antenna lead.


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