Your correct Randall, not enough juice at that lead. I tried the
headlight and nothing. I guess it will have to be at the fuse box.
Thanks so much. John Mitchell 76 TR6
Randall wrote:
>> It is easy to determine
>> by connecting a probe light or Volt meter to the oil pressure
>> switch (or any other point you want to test) and turn on the
>> ignition. If the probe light illuminates or you get a 12 V.
>> reading on your meter, that should work.
>>
>
> There is a problem with that approach (which I suspect is exactly what John
> has done). The problem is that you don't know how much resistance is in
> that circuit, and the Pertronix requires a low-resistance source of power.
>
> In fact, the original coil wire will pass the above test.
>
> So if you want to do it that way, use a relatively high power load (like an
> old headlight bulb) to test the circuit, then check how much voltage you
> get. If you can get 12v with a headlight bulb lit from it, it's low enough
> resistance to power the Pertronix.
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