Home Forums Design and Building 2 Stroke Amplifier Design and Building Question on extra hum in “fat” and “treble” switch Re: Re: Question on extra hum in “fat” and “treble” switch


Maybe it will quiet down when I get it in the cabinet. Right now, the chassis and speakers are sitting on my table. I won’t have the cabinet until next week. I tried running a jumper wire from the center terminal to the ground lug and that had no effect on the extra hum. The amp sounds good in those boosted positions but with the extra noise levels as compared to the center position which is dead quiet.