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Tractor Talk Discussion Board |
Re: Re: Re: Re: Coil, resistor hookup HELP ??
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Posted by MarkB on April 28, 2002 at 05:03:45 from (64.79.80.40):
In Reply to: Re: Re: Re: Coil, resistor hookup HELP ?? posted by Dell (WA) on April 27, 2002 at 09:53:29:
Dell, When you move the resistor to the high side of the coil, you don't change the RC time constant. The current still has to go through the resistor. If the resistor is between the battery and the coil, the current path (with the points open) is battery->resistor->coil->condensor->ground->battery. If you move the resistor between the coil and the distributor, the path is battery->coil->resistor->condensor->ground->battery. In either case, the "R" in RC is the sum of the resistance of the primary field and the resistor, plus any bad connections. When the points open, the current going through the coil has to find another path, and that path is the condensor. The rest of the path is unchanged when the points open. Best regards, mark
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