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What is CRO ??
Why Is CRO Used??
How it Works???
Where is it used???
INTRODUCTION
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BASIC WORKING PRINCIPLE
Heart of CRO - Electron Gun
Chemically coated
fluorescent screen
Point of collision
visible bright spot
Deflection by electric
!agnetic filed-
"race out pattern
Cathode heater
Control grid
# $ %node
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SIZE- &creen Diameter #'$'(')* +nches )GP#Round Rectangular CR"
PHSPHOR-&creen Coated ,ith fluorescent materialColor Persistence of the trace )GP#
SCREEN-Glass ace plate Rectangular screenGraticules mr.ed #cm / # Div
OPERATING VOLTAGE
DEFLECTING VOLTAGE
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