Tube Amp Archive

I couldn't see any fractures in the solder points, so I think it's time for a pro to take a look. Thanks for the advice. I'll follow up with the result for others that might have the same issue in the future.

Thanks for the guidance. I am going to tear her open this weekend and see if this is the issue.

Hi, I have a Blackstar HT Studio 20 head that produces no volume out of the dirty channel until a long warm up (approx. 30 minutes). And at other times, the volume seems weak. When this started and the amp was cold, I would reseat the tubes, which did work, but no longer. Before I replace all of the...