In Reply to: RE: One Channel Hum Affected by Volume posted by mr9iron on March 30, 2025 at 13:46:23:
That is, the D.C. balance 100K pot of the noisy channel.
If there is some imbalance of the current bias of output tubes then the HT hum rejection is impaired.
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Follow Ups
- I would try to adjust the R41 (or R141) trimmer... - cellailuca 03:27:09 03/31/25 (0)