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Help Me Identify This Pickup Please

Discussion in 'Luthier's Guitar & Bass Technical Discussion' started by Tidewater Custom Shop, May 15, 2011.

  1. Tidewater Custom Shop

    Tidewater Custom Shop Performance Enhancing Guitarworks Supporting Member

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    I can't find any reference to this particular model. There are no mechanical markings. It has a hand written "SD" on sticker on the plate. It measures 5.97K ohms.

    Any help?

    [​IMG]
     
    Last edited: Jan 24, 2012
  2. russ

    russ Supporting Member

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  3. Brazen

    Brazen Member

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    It would seem so.
     
  4. walterw

    walterw Gold Supporting Member

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    definitey not duncan or dimarzio. looks like a carvin to me, too.
     
  5. Ronsonic

    Ronsonic Member

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    22 allen headed pole pieces, sorta says Carvin.
     
  6. Brazen

    Brazen Member

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    You ought to post the pic at Carvin BBS and see what they say.
     
  7. walterw

    walterw Gold Supporting Member

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    they'll probably say "carvin" ;)
     
  8. Brazen

    Brazen Member

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    Now I got it. The SD wasn't Seymour Duncan, it"s Carvin M22SD.

    that is, if it's Carvin after all.

    That 5.97K ohms didn't sound right though. One coil dead? Shorted wire?
     
  9. Eagle1

    Eagle1 Member

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  10. Sweetfinger

    Sweetfinger Supporting Member

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    That is indeed an old Carvin M22SD (SD stands for "super distortion") and I think the OP has incorrectly metered the leads. IIRC one of the leads is a coil tap and should be unconnected in normal use. Great sounding pickups for maple guitars with ebony fingerboards.... like old Carvins.
     
  11. Ronsonic

    Ronsonic Member

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    Doesn't Carvin have a patent or design patent on the 22 pole thing? I might be mistaken but I very much recall them boasting of such a thing back in the day.
     
  12. Brazen

    Brazen Member

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    I have the NOS M22s in my Carvin. Model T (bridge) & V (neck) and they are sweet.

    [​IMG]
     
  13. Tidewater Custom Shop

    Tidewater Custom Shop Performance Enhancing Guitarworks Supporting Member

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    Any help on how to measure its total impedence? Parallel or series? Here's what I got - two single coils it appears:
     
    Last edited: Jan 24, 2012
  14. Brazen

    Brazen Member

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    Connect black of one coil to red of other coil. Measure the other two.
     
  15. Tidewater Custom Shop

    Tidewater Custom Shop Performance Enhancing Guitarworks Supporting Member

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    Thanks! 11.23K ohms.
     
  16. walterw

    walterw Gold Supporting Member

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    then you've got series, and it should be crankin' loud.

    if it sounds thin and hums, reverse the wires from one coil.
     
  17. Tidewater Custom Shop

    Tidewater Custom Shop Performance Enhancing Guitarworks Supporting Member

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    Thanks Walter - always a great help! :aok
     
  18. walterw

    walterw Gold Supporting Member

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