by DeathRex » Wed Feb 05, 2014 9:33 pm
I'm working on a Kenwood 1100U tubed receiver. I fixed a ground loop that I caused a few years back, now when I have the unit plugged in, I get a slight hum (5-7mvp-p). If I reverse the AC plug, the hum almost goes away, but when I turn it off with the AC plug reversed I get a hum for about 3 seconds after I turn it off, about as loud as the hum with the AC plug in normal.
At first I wanted to be a ET. Now I are one.