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Will this work

Discussion in 'Pickups & Electronics [BG]' started by Hopkins, Jul 23, 2012.

  1. Hopkins

    Hopkins Supporting Member Commercial User

    Nov 17, 2010
    Houston Tx
    Owner/Builder @Hopkins Guitars
    I bought a Kent Armstrong MM3

    I found this diagram online,

    If I wired it up like this would it work

    Also, why are the grounds from the pickups, volume/blend pot, and Preamp not tied into the chassis ground like the V/M/T controls
  2. FunkMetalBass


    Aug 5, 2005
    Phoenix, Arizona 85029
    Endorsing Artist: J.C. Basses
    That should work. What is the value of the blend pot?

    Also, I don't really understand your second question.
  3. Swap the first and second terminal of each volume pot. This way the wiper will vary its resistance against the pickups so that you can solo one pickup without muting both.

    Also, you might want to ground the third terminal of each volume pot.
  4. bassbenj


    Aug 11, 2009
    Yes. Go look up the diagram for a passive jazz bass wired Vol/vol/tone. That's what you want. Leave tone pot and Capacitor off. and then the output to jack will be the INPUT to your preamp in your circuit.
  5. Smilodon

    Smilodon Supporting Member

    Feb 18, 2012
    I know this isn't very relevant, but that first diagram won't work. The signal is connected to ground at the pan pot.
  6. Hopkins

    Hopkins Supporting Member Commercial User

    Nov 17, 2010
    Houston Tx
    Owner/Builder @Hopkins Guitars
    Thanks alot, I'm going to go with my altered diagram this afternoon.

    To elaborate on the second question. According to the original diagram, the ground circuit for the pickups, pan, volume ties into the ground on the preamp. Where the rest of the circuit grounds to the jack. Wouldn't it be better for the whole circuit to ground in a single location.
  7. SGD Lutherie

    SGD Lutherie Banned Commercial User

    Aug 21, 2008
    Bloomfield, NJ
    Owner, SGD Music Products
    The blend pot is miswired in that original diagram.

    It should look like this (Just in case anyone needs it)


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