Ken Burton Messages: 10030 Registered: January 2004 Location: Hebron, Indiana
Karma:
Senior Member
OK That one is used with point ignitions and drops 12 volts down to 6-8 volts to prevent over current through the primary of the coil and points which caused them to burn the contacts. Lot of cars used an external resistor. For some reason GM used that nichrome resistance wire on the GMC instead.
We are singing the same tune here and just discussing items.