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Thread: Help with push/pull wiring

  1. #21
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    Default Re: Help with push/pull wiring

    Quote Originally Posted by GuitarDoc View Post
    I certainly understand kingswebe's confusion. In nexion218's original post he mentioned installing "a small harness of 3 battery clips" and a switch to change from 18v to 9v. And he mentioned series/parallel. If he was wanting three batteries, he could switch between two in series and the third battery by itself. If he was wanting what Artie diagrammed (which, by the way, is an excellent solution) he wouldn't need the third battery clip.

    The original post WAS very confusing. But I think it is now all straightened out thanks to artie.
    OK, now I get where the confusion comes from and I am really sorry about it. I did not mention or emphasize enough, that the 3 battery clip harness is the current and temporary state of things and I intend to remove it and replace it with the switching solution. My bad. Although I did say that I had the idea of installing a pushpull and making the whole system switchable while I was doing the the 18 V mod with the battery clips and I never mentioned that a switch is installed together with the harness of battery clips. That being said, it looks like it was perfectly clear to Artie from the get-go, so...

    Also, a few very minor observations, without the slightest of ill-will:

    1.: In case I am confued, I ask for clarification and that usually solves the problem.
    2.: While many of us non-native English speakers do have a decent grip on the language, that very fact may be quite decieving and cause misunderstanding.
    3.: What is straightforward for me, might be confusing to others. Completely normal.
    4.: If something sounds confusing to me, that doesn't mean that it is indeed confusing. There is a possibility that I just did not read it carefully.

    Rant over, let's get back to discssing things that matter. shall we? Discussing semantics is for is for grumpy old professors of literature, not for music and guitar enthusiasts.

  2. #22
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    Default Re: Help with push/pull wiring

    Quote Originally Posted by ArtieToo View Post
    Actually, the 3rd battery clip is a quik-'n-dirty way to connect the other two together without soldering. It just "snaps" the others together. I'll see if I can find the article that shows this technique.
    Here. as I mentioned in the original post: "I made a small harness of 3 battery clips wired in series and installed the two batteries, this way making the mod "solderless""

    Click image for larger version. 

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  3. #23
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Help with push/pull wiring

    Quote Originally Posted by nexion218 View Post
    2.: While many of us non-native English speakers do have a decent grip on the language, that very fact may be quite decieving and cause misunderstanding.
    I didn't realize til you said this, that English wasn't your 1st language. You do it well.

    Quote Originally Posted by nexion218 View Post
    Here. as I mentioned in the original post: "I made a small harness of 3 battery clips wired in series and installed the two batteries, this way making the mod "solderless""
    Thanks for the good pic. That saves me finding the article.

  4. #24
    Bacteriaolgoist GuitarDoc's Avatar
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    Default Re: Help with push/pull wiring

    Yes, your English is very good. I hope you weren't offended by any of our posts.

    Like you, my second language is also English (of course my first language is English too).
    Originally Posted by IanBallard
    Rule of thumb... the more pot you have, the better your tone.

  5. #25
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    Default Re: Help with push/pull wiring

    So here goes the update: I failed . Miserably.

    All went well wiring the push/pull: 18 V when down, 9 V when pulled up. I got so excited that I started to put everything in a hurry. Quick soldering, cable into the guitar aaaand nothing. Stepped on the dirt pedal and a weak signal with a slight drive. Started measuring everything, checking each and every solderjoint. Even swapped back the original wiring and pot, but the thing still beahved like it had no power supply, even when the the battery was attached. So when all else failed, hot went directly to the jack. Still nothing. In went another active EMG and ta-da: output is huge again and eevrything is working. After a thorough headscratching it turns out that the only thing I dod not check was the polarity of the current and managed mess up the push/pull wiring and supplied poor EMGs with reverse current, which apparently fried the electronics the very instant I plugged the cable in and closed the circuit... DDD One coil gives a very weak signal, the other one is silent, a bit more so than it is originally intended.

    It was a great ride and awesome learning experence, albeit a bit on the pricey side... Still, thanks for the help guys!

    @Doc: Sure, all is good. At times I can get pretty irritated for no reason and ignore the very observations I made a few posts above.

  6. #26
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Help with push/pull wiring

    Glad you got it working. Sorry you fried a pup. I'm surprised that active pups don't have reverse voltage protection. It only requires one diode, although it would cost a volt internally.

  7. #27
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    Default Re: Help with push/pull wiring

    Quote Originally Posted by ArtieToo View Post
    Glad you got it working. Sorry you fried a pup. I'm surprised that active pups don't have reverse voltage protection. It only requires one diode, although it would cost a volt internally.
    Never mind, never really bonded with EMGs anyway. That being said, I had another set laying around and popped in those. The failure bothers me more than the material loss. There is one thing I cannot wrap my head around though. On your diagram, why do you make a connection between lugs B and D (center left and upper right)?

  8. #28
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Help with push/pull wiring

    It's how you connect the positive and negative together. It's the typical way that's done in guitar series/parallel wiring. The fact that it's two batteries, rather than two coils, doesn't matter. In the following diagram, both sides are electrically identical.

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    In parallel, both electrical contacts are needed. In series, only one is needed, but they both move internally in unison.
    Last edited by ArtieToo; 02-27-2020 at 04:46 AM.

  9. #29
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    Default Re: Help with push/pull wiring

    Makes sense... Though I found some diagrams for the same problem making no connection between those lugs, that's why I asked. I'm trying to figure out where I managed to reverse the polarity before I try to fry another set of EMGs...

    Click image for larger version. 

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  10. #30
    Slutbucker Pimpologist ArtieToo's Avatar
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    Default Re: Help with push/pull wiring

    That diagram is wrong. It won't work in the 18-volt position because there's no connection between the red and black wires in the series mode. The jumper I've added must be installed for that to work.

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