I am considering building a 3 or 4 way digital footswitch to select clean, OD and OD + PAB or OD + midboost. Has anyone done this?
Marhsall has a 5 switch foot controller that could serve as the platform. It is called the 5 way TSL controller. Don't have the scematic but I think it uses a couple of NAND gates wired as flip flops to implement the exclusive latching outputs. I will try to locate the schematic and post changes I make to allow this to work.
you might want to talk to heistl. He just rebuilt my carr slant 6 with a clean,od + midboost on the footswitch and the od can do PAB and bluesmaster voicing too.
the switch has led's and a unique hookup on the back of the amp. I'd bet that he could tell you what you need to know.