"Say for instance, a tractor has an ignition resistor and I happen to put on one of those coils with the built in resistor...... Wonder how the silly thing would act?
I can tell you how it would act, VERY BADLY the spark would be weak as coil voltage and current is gonna be less then it was designed for.
On a 12 volt tractor using a 6 volt coil, the ballast drops the 12 volts from battery down to 6 so the 6 volt coil sees what it was designed for, 6 volts, and a good spark.
BUT if on a 12 volt tractor you keep the ballast BUT USE A 12 VOLT COIL the coil sees quite a bit less voltage and current then it was designed for so the spark IS WEAK.
Id say symptoms may be hard to start and poor performance.........
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Today's Featured Article - Gettin My Old Tractor Home - by Clayton Sweeney. My name is Clayton Sweeney. I am from Southern Maryland in a small town called Lothian. I am 20 and my father and I are the proud owner of a 1954 Allis Chalmers WD-45. When I was 18, I dated a girl in the next county over. Her family are tobacco farmers. It was a cold Thanksgiving evening, and we were going up to her Grandparents house. As we passed one of their barns, I noticed something orange in the corner of my eye in this old shed. It was pretty dark and I asked what it was
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1965 International Harvester McCormick Farmall cub tractor 2,500. Two owner tractor. My grandfather bought new in 1966, then we inherited it. Have all the paperwork original manual and all maintenance records. It starts and moves. Comes with underbelly mower, plough, and some other attachments.
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