I can supply complete wah wah pedals, or rebuild yours with all new circuitry. All rebuilds include my own circuit board with a replica halo inductor and on-board controls. True bypass wiring and a 2.1mm DC jack are standard. Please see the Gallery page for some examples.
The following mods can be performed on most inductor-based wahs:
I don't recommend modifying vintage wahs, as the value will almost certainly be affected, particularly where drilling holes is involved. Vox and Crybaby reissues are cheap and readily available, so there's no need to hack up an old wah.
Some new Dunlop wahs have circuit boards with plated through holes and surface mount components. These are more trouble than they're worth to work on; stick with an '80s-'90s pedal if you're looking for one to modify.