Quote:
Originally Posted by Notimetolooz
CRT pin 2 and V105 (12AU7) pin 6 should be 70V. There is a low DC resistance connecting them so the voltages should be about the same.
V105 pin 8 is connected to -85V through a 47 ohm resistor so that voltage will have to be about the same even if the current is very high. If V105 pin 8 was connected to pin 6 there would be a battle of the voltages (150V being the other) across R124 and R125 that could result in the -38V.
V105 could have a cathode to plate short or there could be a short between pin 6 and 8 on the socket.
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One could easily pull V105 and see if pin 2 of the CRT swings positive(indicating shorted V105 cathode to plate). Also if C115 were leaking it could cause the plate and cathode to conduct hard simulating a short. If removal doesn't eliminate the negative voltage on pin 2, then your shorted socket scenario would seem likely.