A while ago, I had a falling out with my Vaporizer , it had become very noisy and seemed to be picking up all sorts of interference and would feedback like crazy. A tube change did nothing. Then after reading some on the subject, it seemed that the reverb could be the culprit. So I unplugged the reverb and it sounded great. However, I notice that if I turn the reverb knob up, some of the old hissing noise comes back. I guess the question is, is there something else I can disconnect to totally remove the reverb circuit? Is it tube driven, is there a tube that should be removed that won't cause something else to not work properly. Obviously the easy answer is to just leave the pot all the way down, just wondering if there us something else to do. I really like the clean dry sound from this amp, I don't care about the reverb or the gimmicky "Vaporizer " thing .