Tod and Tigers,
US coils, in the era, used 9 volt primaries on the coil. In the "start"
position the ignition switches powers the coil with 12 volts, and the
"run" position directs the voltage through the dropping resistor to 9
volts. British electrics were 12 VDC, throughout.
(See Bill Gegg's COLOR wiring diagram(s) in the Online Rootes Workshop
Manual, Electrical Equipment:
http://www.tigersunited.com/resources/wsm/wsmN35.asp
Subsequent pages show the Mk IA, and Mk II diagrams.
Unless you changed the coil to one that runs continuously on 12 Volts,
you will damage the coil.
The Pertronix (I or II) j switches the voltage through the points to the
coil, and is suitable for either 9 or 12 Primary VDC, it does not switch
the coil's high voltage output, of course. That is the job of the rotor
and cap.
If one wants to run a 12 volt coil, you must buy one rated for that
input voltage. Available as "high performance 12 VDC coil".
The Pertonix "Flame Thrower II is a good choice.
http://pertronix.com/prod/ig/flame/coils/45000_volt.aspx
Steve
___
Steve Laifman
Editor - TigersUnited.com
Tod Brown wrote:
> Jim:
> <--- snip --->
With respect to the ballast resistor, unless you are into
> -- you can do away with it altogether if you are running a
> Pertronix ignition. One less piece to go bad.
> Tod
> B382002384LRXFE
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