Re: Identifying coil voltage

Posted by Doug in OR on January 07, 2004 at 07:39:29 from (12.225.61.140):

In Reply to: Identifying coil voltage posted by jim on January 07, 2004 at 05:23:05:

One way to get an idea is to put an ohm meter across the two coil studs and measure. Disconnect the coil first, of course. You need a meter that is accurate, though. A 6 volt coil will show a resistance of about 1.5 ohms - a 12 volt coil will show a resistance of approximately 3.2 ohms. Ford and a few others had coils rated at about 8 volts for awhile, I believe. If your coil reads somewhere between the two above figures, it might be an 8 volt coil. In any event, you want approximately 3.2 ohms in your coil circuit - including any ballast resistor.

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