Tube Amp Archive

Thanks for helping.

Upon inspection I found that the high voltage fuse is blown, all the 4 internal fuses are ok, and the failed tube appears to have lost the mercury layer on its top, it looks like it evaporated.

Hi This is my first tube amp and I'm kind of a noob, so I'm wondering if anyone can chime in and give me some info about what happened. A power tube stopped working today while I was playing. The amp suddenly went quiet and I noticed one of the power tubes was dark and it seemed to be hotter than th...