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Thread: PJ bass wiring problem

  1. #36
    Woodgrinder/Pickupwinder copperheadroads's Avatar
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    I've had to deal with this a few months ago , I think a switch to switch between the pickups would correct the problem with the canceling when both volumes are on full.

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    Actually, I just drew it all out and it appears you can get all strings INPHASE with both on. Example, my J is south-up. The P is south-up on the low strings and north-up in the high strings. Therefore, if the J is CW, the high string P is CCW, and the low string P is CW then you should get RWRP high strings and in-phase, but not humcancelling, low strings. This is what I believe I have as I mentioned earlier a wire-swap of the J made things worse... especially the high strings... aka: OOP. This still doesnít address why thereís a dull drop with both maxed though... sigh.
    Copperheadroads, why do you believe a switch would work better than 2 volumes? I donít follow?

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  3. #38
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    OMG!!! I wish I had just done this exercise earlier!!! I went and actually investigated better... hereís whats going on:
    J: south CCW
    P low: south CW
    P high: north CW
    WHOEVER WOUND THIS PICKUP SCREWED UP THE WIND DIRECTION OF THE P LOW!!! So much time wasted... :|
    Chris

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  4. #39
    Supporting Member StarryNight's Avatar
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    Quote Originally Posted by verhoevenc View Post
    WHOEVER WOUND THIS PICKUP SCREWED UP THE WIND DIRECTION OF THE P LOW!!! So much time wasted... :|
    Chris
    the wind direction of both coils can be the same if the start of one coil is connected to the start of the other (or end of one connected to the end of the other). It will be humbucking.

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    Sorry, I should have been clearer. Yes, both winds can be same direction and still work as long as the leads are hooked up right. These leads were not hooked up right hahahah. At least itís a fairly simple fix.
    Chris

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  6. #41
    Woodgrinder/Pickupwinder copperheadroads's Avatar
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    Quote Originally Posted by verhoevenc View Post
    Actually, I just drew it all out and it appears you can get all strings INPHASE with both on. Example, my J is south-up. The P is south-up on the low strings and north-up in the high strings. Therefore, if the J is CW, the high string P is CCW, and the low string P is CW then you should get RWRP high strings and in-phase, but not humcancelling, low strings. This is what I believe I have as I mentioned earlier a wire-swap of the J made things worse... especially the high strings... aka: OOP. This still doesn’t address why there’s a dull drop with both maxed though... sigh.
    Copperheadroads, why do you believe a switch would work better than 2 volumes? I don’t follow?
    Look up something called "insertion loss"
    .

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  7. #42
    Pickup Maker David Schwab's Avatar
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    Quote Originally Posted by verhoevenc View Post
    Sorry, I should have been clearer. Yes, both winds can be same direction and still work as long as the leads are hooked up right. These leads were not hooked up right hahahah. At least it’s a fairly simple fix.
    Chris
    I've seen P pickups done both ways. P basses only have one pickup, so the two halves don't have to be in phase with a second pickup.

    But the other issue with a P/J setup is they just don't match very well. The P overpowers the J.

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    Sure, but this was given to me as a PJ set so I would have thought that that would be taken into account.
    As for the "overpowering" comment, I sort of agree. It was a fun little project but in the future I probably won't do any more PJs unless asked to.
    Chris

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