I am attempting to resurrect a GK stereo guitar amp. It's been sitting in my closet for about four years. Before that it was molested by at least one technician who was unable (unwilling) to solve the problem. The nice folks at GK sent me the schematics for the PS. Unfortunately the numbering isn't quite the same on the schematic as on the PCB. Also a lot of the component values are different. So, there's been a lot of head scratching. I've tried just replacing the components that had obviously exploded... there seems to be more to it than that. My next step is to dissect it piece by piece and replace everything that isn't working.

Anybody know where I can get my hands on a +/- 45VDC and +/- 22VDC power supply?

The PS part # is 406-0071e, if anyone has a GK amp that's sitting in the basement (or attic) I might be willing to take it off your hands.

Just used some spare change to buy a 15 Watt Vox Pathfinder. Great amp for the price. Certainly got my money's worth. I wanted an amp that I could unabashedly ravage without worrying about the consequences. Cheapest and easiest mod was to slap a 3/4" piece of pine on the back to close it up and give it some warm and compressed-sounding bass. Swapped the 4558s out for 5532s but that didn't help the noise floor problem much. I want to clean up the final output and smooth the transition from hot -to-not; or balls-to-the-wall vs nothing-at-all, or simply round off the curve before clipping. Yes, I know this isn't a tube amp. Any ideas?