need help on dynakit st 35

I totally rebuilt one of these a few years ago, then foolishly sold it (*kicking self*). I replaced ALL of the components and wiring, and had the "superheating" problem you describe. I'm not a tech per se, but it boiled down to breakdown of the signal traces on the board causing it to go nuts. What I ended up doing was to etch and build totally new boards for it, with new tube sockets and everythin'. It ended up with only the chassis, quad cap and transformers as original, and it sounded pretty damn good. For reasons unknown to me, the hum ameliorates with input from a powered-up preamp. Like I said, I'm no tech, but I can read, solder, and listen. I always felt that the performance would totally rock with some type of outboard mega power supply, but never got around to investigating that, before (*kick*) selling it. It's going to be a LOT of work to re-do the amp, but it will be TOTALLY worth it and satisfying when you are done. I actually still have one of the original (crappy) boards lying around somewhere (could be used as a template). Do you have a copy of the manual and assembly instructions? If not, obtain a copy somewhere. Feel free to e-mail me directly if'n ya want. -John