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Why shouldn't the Mains Ground connect to the Reservoir cap negative?
I'm working on a Marshall 2203. I understand how Marshall has muddled up the overall grounding scheme, but I don’t understand why the general advice... -
Series Filament Amp Hum
My buddy brought me this amp, a Pepco 201 series filament/widomaker amp. An amp tech added a 3 prong plug and bypassed the tube rectifier and simply put a...Last edited by bobloblaws; 12-20-2017, 04:52 AM. -
AC30 Normal channel ground loop fix
Hi all,
I have a VOX AC30TBX on the bench and I am experiencing hum/buzz with the normal channel volume control, which disappears with the...