Pickup switchig vs. pickup mixing

Discussion in 'Luthier's Guitar & Bass Technical Discussion' started by stan p, Sep 25, 2008.

  1. stan p

    stan p Member

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    Hi all!

    I have q question for the gurus about guitar wiring.

    Imagine there is a guitar with two pickups wired in parallel with a volume control for each pickup.

    My question is would mixing out one of the two pickups sound identical to switching to one pickup only, or not?

    In other words, is mixing s substitute for switching or not?

    Whould it be the same for single coils and humbuckers? What other variables are involved?

    Thank you in advance!
    Stan
     
  2. RvChevron

    RvChevron Member

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    Most guitars (Les Pauls) utilize two volume controls, shutting down one would shut out the whole circuit.

    The hot wire is usually wired to the left lug of the volume pot, with the middle lug being output and the right lug to ground.

    If you want to shut off one pickup and leaving the other pickup on, you will need to reverse the right and middle lugs on the volume pot.

    The result will/should just like having only one pickup on.

    Just like on a mixer, turn one channel completely off will leave out other active channels.

    However, wiring a volume pot like this will result in significant highend roll offs when you turn down the pot, also the tapering of the pot will become less even.

    Most guitars out there would normally have a selector to selector pickup, so when two pickups are on, shutting one down using volume pot while leaving the other on seems redundant.
     
  3. stan p

    stan p Member

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    Thank you very much for in deapth answer! Stan
     
  4. RvChevron

    RvChevron Member

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    Sorry I made a mistake in the above answer.

    Looking at the pot upside down with the bottom of the casing facing up:

    It should be the "left" (hot wire of pickup) and "middle" (to output jack hot) lugs to be reversed. NOT the right and middles lugs. The right side lug should always be grounded to the back of the pot for volume control application, assuming you're a right handed player.
     

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