Nice short bit with Billy Corgan talking about the Big Muff and EM

This is it: ON/OFF switch…so what is it? v3 3003 in red/black case? Surely not a v4 IC 3003B…

Looking at that pic though, I can’t figure out what muff that would be — a 3003 ram head would not have the sustain all the way upo in that position because of the way the pots are loaded on the board — in fact that position would be sustain at minimum. The only other on/off red/black muff I’ve seen is the v4 IC version.