• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

Grounding Issue

Just redid the wiring in my bass and im having a wierd noise problem the only time i get noise is when my fingers touch the metal of the pickups. I have a fender p bass, all grounds lead to the back of the volume pot

The magnets (the metal poles you see) are not grounded on the pickup, so you get that noise when you touch them.

That's normal for a Fender. You can try and stick some copper shielding tape under the pickups against the bottom of the magnets, and then solder a wire to the foil and ground that. That should help a bit.
 
Cool!

Yeah, it's like that old joke, a man goes to the doctor and says "Doctor, it hurts when I do this!" So the doctor says "then don't do that!"

I like to ground my magnets to avoid situations when you get your finger too close to the pickup, but if you can't ground the magnets, just don't touch the poles!

I still don't understand why Fender doesn't properly shield their instruments. Tradition is fine, but some things need to be modernized.
 
it could also be that the pickups are wound with the magnets against the hot end of the coil wire rather than the ground end.

if so, flipping the pickup's hot and ground leads will fix it. (for a jazz, you obviously want to flip both pickups to keep them in polarity with each other.)