Re: Re: 12 Volt coil got hot and blew up

Posted by buickanddeere on April 29, 2004 at 20:35:53 from (64.10.41.100):

In Reply to: Re: 12 Volt coil got hot and blew up posted by KCTractors on April 29, 2004 at 18:16:48:

So called 12V coils have internal "DC" resistances of 0.6, 1.5 or 3.0 ohms.
The 0.6 ohms are used on some super dupper electronic race systems. The 1.5 ohm gets used with a ballast resistor with points and usually with electronics. Usually used with a bypass starting circuit.
The 3.0 ohm coil is OK with points and fine with electronics without a ballast. Used where a starting bypass circuit isn't applicable.
I didn't mention inductive reactance in a coil as this meltdown occured at 100% duty cycle.

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