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In Reply to: The 6p14p tubes look like they are running hot in photo posted by Michael Samra on July 13, 2016 at 09:54:27:
If he changes the set bias voltage to -15VDC, he can only bias to 30mA per pair of 7189. That seems to be too cold if 420VDC is the plate voltage (6.3 watts per tube).
What is the plate voltage onto those output tubes?
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Follow Ups
- His bias seems too cold, not hot - FenderLover 17:56:37 07/13/16 (1)
- RE: His bias seems too cold, not hot - Michael Samra 19:42:09 07/13/16 (0)