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Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: Confused on coil
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Posted by JHEnt on December 10, 1999 at 17:07:23 from (216.138.56.148):
In Reply to: Re: Re: Re: Re: Re: Re: Re: Re: Re: Confused on coil posted by dave(47 8n) on December 08, 1999 at 16:34:03:
Some coils require an external resistor ahead of the coil. Some do not. A resistor used on a 12 volt coil is not meant as a voltage reducer as are the resistors on 6 volt coils on 12 volt systems. Most resistors used in 12 volt systems have an impedance of 4-6 ohms, not enough to greatly reduce voltage applied. Ford 12 volt tractors all had the original 6 volt coil used since side distributor 8Ns. Or maybe I should say all replacement coils are the same. The 12 volt tractors had a resistance wire to cut the voltage. That wire costs around $25 from NH.
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