Rickenbacker pickup problem - one with very low output

Discussion in 'Tone Zone' started by Strange Brew, Apr 29, 2006.

  1. Strange Brew

    Strange Brew Well-Known Member

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    Have spent the day trying to fix a) this bloody pc, and b) a strange problem on my Rickenbacker 12 string.

    Regarding point b). Anyone familiar with RIC wiring???
    I recently had a problem with the p/up selector switch of my 1966 450/12 (a non-electrical problem: the toggle wasn't staying in the up or down position) which I fixed

    I have reassembled the Ric, only to discover the volume output from the treble pickup was normal, but the neck (bass) pickup is maxxing out at about half the volume of the other.

    I can find no faults in the wiring circuit - after testing with a multi meter. But here’s the weirdness…… the lead p/up is reading 6.76kOhms on the meter, but the one at the neck reads Zero! Despite the fact that I can hear output from it…

    Any thoughts on the matter?
    A suspect “ground” somewhere?
    Or is the old toaster top pickup simply shagged out?

    I appreciate that this could be a number of things, so all ideas / help / suggestions welcome.
     
  2. guitarweasel

    guitarweasel Well-Known Member

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    My Bass player has the same problem with one of his 4001's :?
     
  3. javamagic

    javamagic Well-Known Member

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    I've got the same problem with my 450/12 so I'm hoping someone comes up with an answer. I tend to use both pickups together with the neck volume full up and then mix in the amount of top I want from the bridge p/up. Having little volume from the neck p/up totally screws this! I was contemplating taking the pickups out, mounted on the scratchplate, and sending them to Shed Pickups in Cardiff for a possible rewind. Check 'em out. They only charge £20 for a single coil and, if I remember correctly, £32 for a humbucker. :)
     
  4. CharlieB

    CharlieB Active Member

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    There are seven things that can cause low pickup output:

    1. Bad winding, ohm it out.
    2. Too far from strings...
    3. Bad, wrong or miswired volume pot... inspect and correct
    4. Bad, wrong or missing magnet.... use ferrous metal bit to compart magnetic pull from a good pickup
    5. Tone pot is miswired... inspect and correct
    6. Switch has poor contact... inspect and correct
    7. Bad ground for that pickup (usually hums when this is the case)... inspect and correct
     
  5. paradox

    paradox Active Member

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    you forgot operator error..................................................... ;D
     
  6. CharlieB

    CharlieB Active Member

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    ok yes

    8. There could be a screw loose behind the guitar
     
  7. javamagic

    javamagic Well-Known Member

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    [quote author=CharlieB link=topic=8171.msg103443#msg103443 date=1146481025]
    ok yes

    8. There could be a screw loose behind the guitar
    [/quote]

    Quite right. And there's a nut loose behind the wheel of my car! ;D ;D
     
  8. Strange Brew

    Strange Brew Well-Known Member

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    Sussed it!

    The answer was 1) bad windings

    Took the pick up to piecea and there was a break inn the coil windings, right there in the middle
     
  9. Strange Brew

    Strange Brew Well-Known Member

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    Follow up... have loaded the bobbin with 42 gauge wire, wound it till it looked full :) and - voila! I rebuilt a pickup!!! A lot easier than I thought!!!!

    And it works!

    Showing 7.5KOhms on the Richter scale O0
     
  10. CharlieB

    CharlieB Active Member

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    You mean the Rickenbacker scale?
     
  11. Constellation80

    Constellation80 Member

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    How hard is it to rewind a pickup ?
     
  12. CharlieB

    CharlieB Active Member

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    Not too hard at all if you got some basic hands on skills...including soldering
     

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