Hi gang here is a copy of the schematic for the version I am working on. It is good advice to replace any parts with the original ones. I think the Motorola MC1303L fix will and replace the transistors will fix it. I just need a source of parts. I replaced a chip in a peavey PA head yesterday and it fixed it. I have a little experience soldering and reading schematics , but I always apreciate the help and experience others have. A source for parts would be a huge help