Three wire jazz bass pickup question?

Discussion in 'Pickups & Electronics [BG]' started by gjbassist, Sep 22, 2013.

  1. I have a nearly 40 year old Cortez jazz bass that I'm changing the pots on. I noticed it has three wires per pickup; one red going to the center lug on the volume pot; one white and one blue, both going to the ground on the top of the pot. All the jazz bass pickups I have worked with in the past have only had two wires. What is the purpose of the third wire? Does this third wire allow for any special wiring options?

    Attached Files:

  2. No way to be sure without messing around with it with a meter. Could be dual-coil pickups. Or could be a shield wire(probably the blue one).
  3. Cadfael


    Jan 4, 2013
    Germany, EU
    No Dual Coil ...

    I "know" that Red is HOT.
    White and Blue are "the other end of the coil + some kind of grounding (a metal plate somewhere in/at the PU?

    This was made to have the opportunit for Out-of-Phase or the correction of Out-of-Phase without loosing the seperate grounding.

    Red is one end of the coil(s). Can't say if White or Blue is the other end.
    As dmusic148 aldready wrote: A meter will prove.

    Two colours should show about 7k ohms - about +/- 2k Ohms ...
    One will have no connection to the other coils ...