Tenma 72-375 Frequency Counter Repair & Calibration

[@zdzisiek1979]

Ciekawy układ z rezonatorem kwarcowym nie widziałem takiego rozwiązania. Pozdrawiam

[@Mr71chevyvan]

hi my counter was bought used and the 10mhz adj trimmer is chewed up, any idea what the min/max pf is for the factory trimmer ? also is a manual or schematic available for this counter ? barry

[@Jebs-Projects]

I could not fined a schematic for this counter. As for the trimmer I don't know what value it should be. I took a trimmer out of an old SSB CB and it was 2pf to 22pf I believe.

[@Mr71chevyvan]

i'll give it a try.