Posted by Janicholson on August 20, 2013 at 15:07:23 from (74.60.94.18):
In Reply to: Re: HOT COIL posted by ED R on August 20, 2013 at 14:23:15:
Well no flame here just fact. No modern coil has internal resistors. The windings are designed to run at 14.2 to 14.8 volts. There are more turns on the primary, and finer wire. The coil made like this is marked 12v no external resistor required. Coils designed to operate with an external resistor, or on 6volt systems, are basically the same. Both type draw about 3 to 4 amps when turned on (points closed) The reason for the ballast resistor is to allow a bypass circuit to give starting voltage directly to the coil when cranking. this allows hotter spark and while cranking the battery voltage can drop to 10 volts or less. This topic has met the same fate many times here so don't feel bad, just run with the new info. Jim
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