>Can anyone tell me why the guy who sold me the 12v coil insisted I not =
>the external resistor?
the purpose of the resistor is to limit the current through the primary =
If it is removed then the current may be so high that the primary =
winding will burn off. Some coils have a large internal resistance so an =
external resistor is not needed. (This is the
case with my volvo). Some manufacturers bypass (short circuit) the =
resistor at start up so that the coil will produce a significant spark =
at low temperatures and low battery voltages.
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