I have zero time right now. Hopefully, things will shake down to a much better situation for me in a month or so, but right now, there's no way. Given the amp's age and the quality of parts, I'm betting you just have a few bad caps. Eden has always used ultra-cheap parts in the wrong places and 15 year-old cheap caps would be hitting the end of their life cycle. The fuse isn't blowing (make SURE it's the proper value), so there's probably nothing wrong in the power section like a shorted transistor, and the power light stays on, which is generally a separate low voltage tap off the power tranny, so I'm betting the problem is in the high voltage section for the tube itself, either in one or more voltage doubler circuits required to run the tube and/or in the filter caps on that line. Right now it sounds like at worst case you'll be replacing some diodes and resistors and caps. That's all just me guessing about how the amp is set up based on what I know about it though. I'm at work right now. When I get home in the morning, I'll see if I have the schematic somewhere.