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Old 09-18-2010, 02:34 PM   #3
rotorwrench
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Join Date: Jun 2010
Location: San Antonio, Texas
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Default Re: Ignition resistor

The ballast was designed to make the best of the original coil installation. Many later models use no ballast and were designed that way. A coils primary resistance has to be matched to the condenser that is being used and a ballast resistor is usually put there to better control the current to the system depending on the voltage applied to it.

As far as having an internal resistor, the primary winding in a coil is a resistor of sorts wound around another coil of secondary windings to form an inductor. Induction coils are rated by their primary resistance. THere are a lot of threads on this board about coils if you run a search and check them out.

Kerby
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