Home › Forums › Design and Building › 2 Stroke Amplifier Design and Building › Squeal and hum on 2stroke › Re: Re: Squeal and hum on 2stroke

January 25, 2013 at 8:36 am #5772
beelzebum
Participant

Im glad it all worked out well for you. As for a potentiometer on a NFB loop, that is pretty much what a presence knob does on most amps, although usually with a bit more components involved. The NFB resistor must at least have one lead disconnected to test it for anything other than it being shorted, regardless of the amp being on or off.