**UPDATE** Channel 1 on my T-verb just crapped out??

[Bren10]

I have this problem too. It's a funky effects return switch. Just wondering if you checked that. MarkPurney turned me on to this. I was pulling my hair out and he suggested putting a patch cable in the loop to bypass it. Problem solved.

I bet it is the Screen Grid resistors, actually. I just thought I'd mention this.

 

[LSCMan]

I need to know more about this 'Heat/Cold method' :shock: