I'm looking through the amp and there's two issues I see, and I suspect they're related. The output of my power transformer is 370 volts on both sides, not 345, and my b+ is 475 volts. So that's within +- 20 % voltage spec for a Fender but is it ok for the triwatt? Also, would that cause my bias voltage to be too low? My AC is typically around 126.
I'm taking a close look at the od section now.
Edit: OK, so an hour later I think I found the problem with the OD - one of the shielded cables was shorted internally.
The voltage thing concerns me, though. Some representative voltages: V6 pin 3 494V, pin 4 461V pin 5 -47V. V5 pin 3 492V, pin 4 462V, pin 5 -47V. V4 pin 6 293V, pin 1 298V, pin 2 78V. V3 pin 6 207, pin 1 302. V2 pin 1 205V, pin 6 128V. V1 pin 1 165V pin 6 146. The maximum bias voltage I can get in the 6V6 position with a 'matched' pair of NOS Sylvania 6V6 GTA's is 9mV on one tube and 12.3 on the other. Does that sound right?
I checked over the parts in the power supply section and they seem to be ok and installed correctly.
Thanks!
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