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Re: Ballast Resistor
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Posted by John T on April 12, 2006 at 04:50:27 from (66.244.90.5):
In Reply to: Re: Ballast Resistor posted by jeffalex2 on April 12, 2006 at 04:21:55:
Jeff, YOURE CORRECT if indeed your coil is full 12 volt rated, NO EXTERNAL BALLAST IS REQUIRED on a 12 volt system. Caution: A full true 12 volt (sometimes referred to as internally ballasted) coil might be labeled "12 volts" or "12 volts no external ballast required". HOWEVER a coil labeled "12 volts for use with an external ballast" does require a ballast since its in reality a 6 volt coil. NOTE: A 6 volt coils primary resistance as measured between its lil + and - terminals would be in the 1.5 to 2 ohms range, while a 12 volt coil would measure more like 2.5 to 3.5 or so ohms. NOTE: Im NOT talking about the series in line 10 ohm protection resistor recommended for the alternators No. 1 excitation circuit feed, Im talking about the ignition ballast resistor here!!!!!!!!!!!! Keep us posted n good luck John T in Indiana
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