All, I need some direction. I like to tinker around with things and try to be as self sufficient as possible and fix my own crap and have learned a lot along the way. Here lately I’ve gotten the bug to tweak an amp. Locally, I’ve found a 1959HW with a blown OT and the seller wants out of it because it’s too loud and doesn’t have enough gain. He is asking $1k for it which isn’t a bad price at all. I’ve pulled the chassis and it’s bone stock: I would like to throw a Merren or Heyboer C1998 in it and take it from the ‘69 metal panel circuit back to a ‘68 plexi circuit. I kind of have a rough idea of what needs to be changed due to some info I dug up on the old metro forum. Where can one find good accurate color diagrams at where each individual part/value is represented etc? I have attached a file for the type of diagram I’m looking for. I know many would say buy a Germino etc but I want the satisfaction of doing it myself and if I say screw it one day and want it to change it to 10,000 circuit I can.