I just need something to switch channels. I noticed that Wizzard of Ozz used a Randall pedal with his but I'm not sure which one. Would any 7-pin work?
I had one of the prototype Diezel tank-built footswitches for my Herbert and it was all I really needed.
If you can find one used, that is the footswitch to get.
I have mine is a very safe place, and not even in my own country, which by the way is not remaining to be a very safe place anymore.