This is a lighted, 3-button footswitch that is a direct replacement for an Ampeg AFP-3 / AFP3
I bought it when I had an SVT4-Pro, but never actually used it, though it was on the pedal board. Yeah, I know...
It will also work on the back of PF-500's with a cable left over that may
work as a FX pedal external switch (not guaranteed or tested, but it seems like it might).
It's $69 + shipping and 2-3 weeks wait from VoodooMan, or $59 shipped/OBO from me. Will trade for ????