Re: Wiring an On-On as a pick-up selector?
The problem with that switch is that you will only get neck OR bridge and not be able to have both. If that's what you really want, wire the hot from each pickup to the end lugs on one side and wire the center lug on the same side to the volume pot(the other side of the switch is not needed). The 1223 on/on/on is a better choice as it will offer both pickups in the middle position. The wiring is a little more tricky as the wire to the volume pot actually connects to both center lugs with the pickup hot wires connecting to opposite corners(not sure which corners but its easy to wire and test and switch if it doesn't work)..