Home › Forums › Design and Building › 2 Stroke Amplifier Design and Building › Curious Hum… help? › Re: Re: Curious Hum… help?

January 21, 2012 at 4:16 am #5573
Robin
Participant

Did you use a brass ground plate per the book instructions, a buss wire, other grounding scheme? The tone control should from the lug to the pot case to ground OR from the lug to ground, but not both. And the pots should ground toward the preamp side of the amp and away from the power section, including the filter caps.