In Reply to: RE: stereo amp flywheel supply, 40% more hum in one channel posted by rage on February 19, 2015 at 10:40:15:
I recall C2 needing about 150-200uF to keep things quiet at the OPT secondary last time I had the 2A3 mono circuit running.
Grounding is always a concern, but you have built that circuit so many times it is probably not the issue.
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Follow Ups
- RE: stereo amp flywheel supply, 40% more hum in one channel - deathtube 667 16:12:23 02/19/15 (1)
- RE: stereo amp flywheel supply, 40% more hum in one channel - rage 20:34:53 02/19/15 (0)