In Reply to: RE: Dynaco Pas Hum posted by Rudes on May 28, 2020 at 14:13:55:
"I have 23v dc across F+ & F- and 11.2 at pins 4-5"
Is that 11.2VDC from 4 to 5? I recall you had measured pin 4, at 6 volts, referenced to ground. Has this changed? What are the DCV measurements at 4, 5, and 6 with reference to ground?
If you don't have a scope, you could measure ACV 4 to 5 and 4 to 6 and 5 to 6. This would tell you if the DC voltage is filtered to the heaters.
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Follow Ups
- RE: Dynaco Pas Hum - fredtr 05/28/2016:16:51 05/28/20 (0)