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Old 18th Jan 2018, 6:30 pm   #26
ms660
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Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
Default Re: Another DC coupled amp

I wonder if it's a bad ground somewhere, might be worth measuring any voltage between transformer CT and the junction of the two 16 volt zeners when the 16 volt rail rises.

Lawrence.
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