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Thread: Calling all Japanese P90 Experts... Ever Seen This?

  1. #1
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    Default Calling all Japanese P90 Experts... Ever Seen This?

    P90s from my 70s Epiphone Casino. They have RCA plugs!.. there are no markings I can find on the pickups. I have never seen this before.


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  2. #2
    Mojo's Minions ICTGoober's Avatar
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    Never have seen that.... How's it sound?

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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    Quote Originally Posted by ICTGoober View Post
    Never have seen that.... How's it sound?
    They sound really good. That’s what got me wondering what they were.


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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    Inventive way to avoid soldering/cable hurdles in a semi
    Kinda reminds me of: https://youtu.be/D37W0swf0FY

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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    I have no idea what that was all about. ?


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    Mojo's Minions beaubrummels's Avatar
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    In case you want to go direct to stereo?
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    Honestly, that is a damn good idea, that if refined, would sell a hell of a lot of replacement pickups.
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    The previous owner (or someone) did that. It is not a design of any pickup manufacturer.

    A lot of manufacturers have come up with designs for "quick change" wiring...most of the plugs are smaller and more elegant than an RCA. And that design would only work for one-conductor pickups. If you have a four-wire pickup, you'd need two RCAs plus the ground wire. Most pickup cavities would not have enough room for such a setup. GFS make a "Kwilplug" that is small, attaches right on the back of the pickup, and it works for four-wire pickups so you can still split, parallel, oop, etc.
    Originally Posted by IanBallard
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    Quote Originally Posted by GuitarDoc View Post
    Most pickup cavities would not have enough room for such a setup.
    Isn't that the point here?
    - Is there enough room? There is, it's a semi, a rat can have a nest in there.
    - Is it annoying to change pickups in a semi? It sure is.
    The only thing that puzzles me is - if you are handy enough to carry out this kinda tweaking, then in all likelihood the process of changing pickups in a semi is a piece of cake for your skill level anyways...

    So I 'm gonna go Sherlock here:
    - the previous owner had two semis, but only one set of pickups of his liking. So he came up with a way of quick-switching, depending on which guitar he was in the mood for.
    Does it make sense now?
    Last edited by Timberwolf; 05-29-2020 at 08:22 AM.

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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    I get the feeling it is a factory thing. There may be others out there. This is a JDM guitar. They may have had some sort of plan. The pots on this guitar are covered with soldered on dust caps. This may have been a early quick connect system pre dating all the others out there to make pick up swaps or servicing pickups easier. This guitar is one of the first Matsumoku made set neck casinos with lacquer finish made for the Japanese market.


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    Ultimate Tone Slacker Jacew's Avatar
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    It sure looks factory made.

    If it was diy he would have to take the pickup apart in order to make it like that. Why to do that when he could have just splice the wire.

    And if he was skilled and careful enough to fix it like that, I don't think he would opted to do it in first place.

    Maybe it's an old less succesful aftermarket pickup for semihollows or acoustics?
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    Default Re: Calling all Japanese P90 Experts... Ever Seen This?

    Quote Originally Posted by Jacew View Post
    It sure looks factory made.

    If it was diy he would have to take the pickup apart in order to make it like that. Why to do that when he could have just splice the wire.

    And if he was skilled and careful enough to fix it like that, I don't think he would opted to do it in first place.

    Maybe it's an old less succesful aftermarket pickup for semihollows or acoustics?
    Definitely a mystery. If it was a pickup maker with a revolutionary new design I think some sort of identification mark would be present such as a stamp or sticker. The pickups look unmolested. The covers appear to be factory soldered, as do the pots. I believe they did it to make assembly and service easier.


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