Quote:
Originally Posted by ah-kay
The resister is used to provide 'excitation' current to the alternator winding during initial startup. Alternator is different from dynamo, it needs an initial dose of current to 'excite' the winding to give sustaining voltage. Normally, the battery light provide a path for the excitation current so the resister is not needed. However, if the light bulb burnt out and there is no resister then the alternator will not generate any voltage.
It is always better to buy one with the resister just in case the light bulb burnt out.
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If Uncle Sam drafted you in the 60's and you didn't want to go, you are called a draft resister. A resistor is an electronic part.
Edit: I suppose criminals sent to the electric chair is part of an electric circuit and being a resistor. 
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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
Last edited by funola; 04-01-2016 at 03:13 PM.
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