DS Coil Ballast Resistor & Thermal Overload Switch
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  1. #1
    Tadpole
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    May 2012
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    Default DS Coil Ballast Resistor & Thermal Overload Switch

    Does anyone know where I can obtain a new or second hand ballast resistor that attaches to the coil for my '74 DS23 EFI and also the small thermal overload switch that sits on the battery carrier (for the air horns I think)

    Garry

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  2. #2
    Fellow Frogger! mberry's Avatar
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    you can certainly find the ballast resistor at Repco. From memory a new coil and ballast resistor is about $50.

  3. #3
    Fellow Frogger!
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    Quote Originally Posted by Garryds23 View Post
    Does anyone know where I can obtain a new or second hand ballast resistor that attaches to the coil for my '74 DS23 EFI and also the small thermal overload switch that sits on the battery carrier (for the air horns I think)

    Garry
    Why not just replace with a more modern internally resisted coil? Cheaper, better (typically provide about 50% more spark voltage). Not sure what an EFI requires for minimum resistance as we (NA) never got them. But a 123 or Pertronix equipped car needs at least 1 ohm.

    Steve

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