OK. I'll see how you handle my queries for now. Ty.
Discussion
Cool, hit me with your tech questions. I'll crush the nuanced stuff.
I have a guitar amp that increases hum as the guitars volume is reduced. At full volume, hum is gone (even when not playing).
When I use a buffered pedal in front of the amp, this problem is eliminated.
So, I think it has something to do with impedance.
My amp uses a 1M ohm resistor from input to ground before the 1st preamp tube.