Tube Amp Archive

Sounds like a bias problem, maybe the coupling caps after the PI? Are the EL84 redplating? Hello again, everyone. I still didn’t repair it. I already have it to technician and he changed those two capacitors, and ez81 tubes near them. Also he changed el84 tubes, but still the same problem. So I not...

Hello again, everyone. I still didn’t repair it. I already have it to technician and he changed those two capacitors, and ez81 tubes near them. Also he changed el84 tubes, but still the same problem. So I noticed that it happens because of el84 overheat. So they are getting so hot.. I tried to pull ...

From your post and the comment you made on the cabinet possibily being a issue I do not think you have enough technical ability to trouble shoot this issue even with our help here, so the amp I would say needs to go to a repair shop. If I am wrong then please accept my apology in advance! You are r...

Hello, i got some pretty strange issue with my Echolette m40. When i turn it and play everything is good, but after about 15 minutes, more or less, the volume goes down and sound becomes thiner. And in a couple of minutes it sounds like broken fuzz pedal with low volume. And it only resets after i t...