Quote:
Originally Posted by Kamakiri
Working backwards in my mind from over a week ago (been a rough week with my wife coming home from rehab), I remember that the oscillator isn't running at all. We checked and re-checked board traces, tube pin continuity, and grounds.
As I understand it, the +275V and the +386V voltages show that everything going into the board is fine. Once again I'm stymied because there are only so many parts here....
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In that case, I agree with the hints about sockets. If the plate voltages on the socket are way high (the same as the supplies), it could indicate either that the plate pins aren't connecting (no tube current) or the filament voltage is low (also no tube current). Can you see the filament light up?
01-09-2017, 12:24 PM
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