I'm working on a restored Heathkit AA-100 Amp. It worked well for about 3 months but now blows a fuse every time I turn in on. I'm sure I'm going to need some help.
Based on the few minutes I've spent looking at it; the problem appears to be in the output stage (PP - 7591 biasing). But that's as far as I've gotten. It's been years since I've worked on a tube amp. I restored a Heathkit SA-2 Amp that has been working well for almost a year. I'm hoping to build or restore additional amps in the future. I look forward to participating in the forum.
Based on the few minutes I've spent looking at it; the problem appears to be in the output stage (PP - 7591 biasing). But that's as far as I've gotten. It's been years since I've worked on a tube amp. I restored a Heathkit SA-2 Amp that has been working well for almost a year. I'm hoping to build or restore additional amps in the future. I look forward to participating in the forum.
