Tex Mex Pickup out of Phase?

Discussion in 'Just Pickups' started by rexindigo, Mar 30, 2020.

  1. rexindigo

    rexindigo TDPRI Member

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    Hi evrybody,
    just replaced the neck pickup of my 78 telecaster with a tex mex road worn pickup.
    i wired black to ground and with as hot.
    in the middle position i had a thin out of phase sound...
    rewired it with the white gooing to ground: no all is good an i even have humbing in the middle position.
    Now my question: has Fender changed winding direction and polarity with newer guitars then 78?
    Thanks for Your help cheers rexindigo
     
  2. Dacious

    Dacious Poster Extraordinaire

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    Yes. 78 was both same magnet/same polarity so in phase but no hum cancel.

    Later they flipped magnet polarity and winds on the neck.
     
  3. SPUDCASTER

    SPUDCASTER Poster Extraordinaire Silver Supporter

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    Check the polarity with a compass. Sounds like they will be the same.

    You can flip the polarity of a pickup with a neodymium magnet. They're not expensive and you can get them at most auto parts stores.

    Do a search here. There are several threads on the subject.

    If you get stuck. PM or email Rob DiStefano, Cavalier Pickups and member here.
     
  4. rexindigo

    rexindigo TDPRI Member

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    I've checked the polarity and its different, the tex-mex is south and the original Bridge Pickup is north according to my compass. With the identical winding direction, this gives me out of phase while wired "correct" (Whit is hot, black is ground) I have switched these and now the middle position ist hum cancelling.
    Question:
    Is there any need to pay attention to the grounding of the metal cover?
    This is normally grounded and is now on the hot lead ?
    Dangerous when using a Tube amp?

    Any opinions on this? Thank You greets Rex
     
  5. rexindigo

    rexindigo TDPRI Member

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    Correction: the neck pickup is north (it attracs the south needle) and the bridge pickup is south
     
  6. Dacious

    Dacious Poster Extraordinaire

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    Yes - carefully clip the link between the hot and eyelet to cover - I would run a separate wire from the solder link on the cover to the common earth on the vol pot . It's easy to screw up the fine winding wire in the eyelets if you're not careful.

    Then you're also set up for 4-way or 5-way switching.
     
  7. Asmith

    Asmith Friend of Leo's

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    Its not dangerous but will be noisier, the cover is suppose to shield but now its being picked up and amplified.
     
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