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Thread: Pot values for split coil wiring

  1. #1
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    Default Pot values for split coil wiring

    I'm getting ready to start a 2 humbucker tele build and looking at the wiring diagrams for coil splitting I noticed that when these are wired thru a dpdt volume pot they used 500k pots but when wired thru a dpdt tone pot they used 250k pots. Yes, you can use either value pot, I just wondered if there was anything in the staging that would warrant the size change. More curious than anything else I guess. Cheers - Jim
    "The two main differences between men and boys are the length of their belts and the cost of their toys "

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    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Pot values for split coil wiring

    Well, the DPDT switch on a push-pull pot is electrically independent of the pot value, so it has no relevance to whether or not your split is on the tone or volume pot. The value of the pot is usually based on the pickup used. I'm not sure I'm even addressing the question you're asking, but I'm guessing your question is based on just a quirk of the specific diagram you were looking at, at the time. Maybe.

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    Default Re: Pot values for split coil wiring

    Thanks for reaffirming what I thought. The diagrams from this SD site on wiring a 2 humbucker tele with split coils showed the different values and I thought it strange. I have a set of jazz humbuckers I'm going to use and I'll put 250's in them to mellow it a bit more. I'm going to wire it thru the tone so I can keep the volume knob virgin and avoid any roll-off accidents. Should be a fun fall/winter project.
    "The two main differences between men and boys are the length of their belts and the cost of their toys "

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    Administrator Mincer's Avatar
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    Default Re: Pot values for split coil wiring

    Would love to hear how this turns out!
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    Default Re: Pot values for split coil wiring

    This does bring up something interesting. Having the controls so when a humbucker is split, it sees 250k instead of 500k when it’s series. It would involve using a resistor along with a multipole switch used for coil splitting one humbucker I think. I haven’t seen it done in this fashion but I’m sure somebody has tried.

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    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Pot values for split coil wiring

    Quote Originally Posted by Mincer View Post
    Would love to hear how this turns out!
    Ditto. A set of Jazz's in a Tele should be sweet.

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    Default Re: Pot values for split coil wiring

    Years ago I was playing in split single coil and as the song died out I rolled off the volume and inadvertently bumped back into humbucker mode. When I built a Les Paul for my friend I wired the splits through the tone knobs so as to leave the volume knobs virgin. You can roll or swell without fear of squawking at your audience. I like this set up and when called for will wire this way from now on. But then I'm also one to put the Tele switch at the back. I guess I just like things out of the way.
    "The two main differences between men and boys are the length of their belts and the cost of their toys "

  8. #8
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    Default Re: Pot values for split coil wiring

    I could see all kinds of advantages to this wiring scheme but it's more involved than I'd like to get, i would need a detailed diagram and to be honest, I'm not sure I could fit all thats required in a Tele control rout. This brings up another idea. On a 4 knob 2HB setup have a 500k master volume and tone with a switch split to single coil on a 250k master volume and tone. The wiring required is already making me dizzy.
    "The two main differences between men and boys are the length of their belts and the cost of their toys "

  9. #9
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    Default Re: Pot values for split coil wiring

    Oops - that was in response to Bowtomecha's post
    "The two main differences between men and boys are the length of their belts and the cost of their toys "

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