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S/N: 13677Low Pass Branch Testing After Repair & Tuning
(A division of Alabama Broadcast Services, LLC)www.DuplexerRepair.com
Loop/notch assembly with damaged threads on notch adjustment rod. Could not be adjusted/tuned prior to repair.
S/N: 13677Service & Repair Photos
Celwave Model 497 VHF Duplexer
Services by DuplexerRepair(334) 444-6796
(A division of Alabama Broadcast Services, LLC)www.DuplexerRepair.com
Amount of metal fragments which came out of female threads upon re-tapping/re-running threads. Most of this came from the threaded notch tuning rod, but some were from the female threads themselves.
Threads on notch/reject tuning rod re-run and polished. After thread repairs, notch/reject tuning rod would thread through entire range with two fingers.
Notch/reject tuning rod threaded fully into cavity, as seen from lower end of cylinder.