In Reply to: RE: SET Headphone amp posted by OldNuke on August 3, 2016 at 11:14:08:
The total impedance to ground of the first stage grid is highest at your 30%-50%. That could mean the buzz is picked up by capacitive coupling from some nearby source. I agree with Gordon, grounding and layout are the most likely routes to success.
Edits: 08/04/16
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- RE: SET Headphone amp - Paul Joppa 11:46:03 08/04/16 (0)