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how to identify J pickups

Discussion in 'Pickups & Electronics [BG]' started by kencasino, Sep 13, 2008.

  1. I recently bought two used 5-string J pickups for a project.

    1. How can I tell if they are for active or passive, and does it matter?

    2. How about which one is bridge pu and which is neck?
  2. 1. It might. There are no markings on it?

    2. The wider one is the bridge.
  3. greenboy


    Dec 18, 2000
    remote mountain cabin Montana
    greenboy designs: fEARful, bassic, dually, crazy88 etc
    If both pickups are the same routing length as they are in some basses, the one that reads a higher value on a multimeter is usually the bridge. They tend to be wound slightly hotter so that the lesser energy near the string's anchor point will be compensated for somewhat.
  4. Bump:

    for how to tell if they are for active or passive?
  5. Active pickups are very very rare, the only ones I can think of are EMG's, usually an active bass has passive pickups through an active preamp.

    If your pickups are active, they'll have some kind of circuitry somewhere on them or will be enclosed in epoxy. However, being enclosed in epoxy is not a sign of active pickups,

    One sure way to know is to try them, if they are active they simply won't work without a battery.

    But, like I said, there's 95% of chances that your pickups are passive, especially if they only have two wires each.
  6. Thanks, that helps a lot.

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