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 2:38 am #5770
Paul
Participant

so even with the amp off i cant properly test that resistor? or only when it’s on?

seems like the primary leads are swapped – so i’ll start with that.

but is there a benefit to a NFB pot rather than resistor – especially if i’m going to be swapping different output tube types on this amp?