Here's my dilemma. I bought a new set of Seymour Duncan Quarter Pound Pickups (not signle coil) for my 1999 MIM Fender P-Bass. I also bought a new tone pot for it. I've semi-rigged it & it sounds like total ass. sorry but it does. the SD & the Fender diagrams are different. I'm not sure what the problem lies in & I'm not quite sure about the quality of the capacitor. HELP!
You solder everything well? Especially those pot case grounds. Those take a buncha patience and a relatively hefty iron. Don't forget that ground wire to the bridge. Those caps (.05?) are cheap. You can get`em at Radio Shack or online at Stew-Mac. Maybe experiment with the values? Like they say, ".050µf and .100µf are used for electric bass...The higher the value, the more bass output from the tone control at its 'zero' setting." I checked the S/D and Fender schematics. They're the same. The S/D is much cleaner and easier to follow. I'd go with that one. Here's a PDF version of Fender's schematic from "Mr. Gearhead" -- click