John G. Hasler said: (quoted from post at 17:25:42 11/21/08) > if you have a 12 volt system a resistor is
> required in some form or points will have a
> short life.
The coil will also have a short life. It will overheat at low rpm due to the long dwell time.
I agree with everything except the last eight words. The dwell time as a percentage of each second or minute does not change with RPM, unless you count zero, when it 'dwells' as long as the points are closed to start with. The length of each power cycle is greater, but so is the cool-down time, both being in milliseconds. I would think it would overheat equally at any RPM.
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