I may be incorrectly reading what you are saying, but Petronix specifies a 12
volt source for the red wire -if you hook it up to the + terminal of a 6 volt
coil (e.g. one with a ballast resistor), the Pertronix unit will workbut the
general experience is that it will have a shortened life (Petronix isn't
saying for sure about this, but they do insist on a 12 volt coil which implies
that they agree).
You can probably use any source that provides 12 volts crank and run OR bypass
the ballast resistor(running a non-ballasted wire next to it is sufficient
without disconnecting the ballast wire sincethe current will take the easier
path) and change your 6 volt coil to a 12 volt.
Good luck!
Greg Rowe1979 Spitfire
> Date: Fri, 19 Sep 2014 15:21:21 -0400
> From: dmitchel@sbcglobal.net
> To: wrgingerich@gmail.com; spitfires@autox.team.net
> Subject: Re: [Spits] Electronic Ignition
>
> Thanks to all rhat replied. I took Bill's suggestion and connected it to the
second terminal on the coil, and, after resetting the timing, it fired right
up and is running great. It turns out that had I had the time to play with the
timing yesterday it would have been fine.
>
> Once again, thanks for everyones help.
>
> Doug
> dmitchel@sbcglobal.net
> Sent from my mobile phone
>
> -------- Original message --------
> From: Bill Gingerich <wrgingerich@gmail.com>
> Date: 09/19/2014 12:36 PM (GMT-05:00)
> To: 'Doug Mitchell' <dmitchel@sbcglobal.net>,spitfires@autox.team.net
> Subject: RE: [Spits] Electronic Ignition
>
> On a 73 I believe it is a wire in the wiring harness.B There is no
separate
> resistor.B My 74 is that way as well.B When I didB my Pertronix I just
ran
> the 2 wires to the 2 terminals on the coil.B It's been running fine for
> about 12 years.
>
> BillG #133
>
>
> -----Original Message-----
> From: Spitfires [mailto:spitfires-bounces@autox.team.net] On Behalf Of Doug
> Mitchell
> Sent: Friday, September 19, 2014 11:12 AM
> To: Spitfires
> Subject: Re: [Spits] Electronic Ignition
>
> Last week, I inquired about which electronic ignition to use. I purchased a
> Pertronix, and started to install it yesterday. This is on a 73, US spec
> 1500. Can someone please tell me the physical location of the ballast
> resistor?
>
> Thanks,
> Doug
> dmitchel@sbcglobal.net
> _______________________________________________
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