And one with the "mix" POT:

Here's a dual pass/cut control (break at P1 and P2):

Here's the Norma...

Yeah, probably--if there's no other damage.

Carefully sand off any old glue from both the guitar top and the back of the bridge. You can "mask off" the finish on the guitar with tape; then sanding shouldn't mar it.

Ideally you would want to use fancy deep-throated C-clamps which are designed specifically for this purpose. But those are expensive, and probably not worth the money unless the guitar is pricey. Instead just apply the glue and place a weight on top of the bridge.

If it's a fancy expensive guitar it's better to have this done by a professional. They will use hide glue, and make sure the repair is done right.

If it's not expensive, just buy some epoxy and glue that sucker down...

Schematic for the "variable inductor" wah pedal.

The Duolian's bridge, and the nut extension...

Stripping the "trailer park mojo" from the Duolian...