I have 50 years experience, as does John T. I teach Electrical systems and Transportation/Power Technology at a University. John T is an Electrical Engineer. I also think Buickanddeer is an Electrical Engineer. (others on here are also experienced, those who think there are resistors inside coils just have not disassembled one to see what makes it go. We are clearly denying the existence of internally resisted 12v coils. Some company could make one, but the heat would need to be dissipated in some way, not convenient. Why build a device for 120 volt operation and run it on 220 by putting a resistor inside. The ballast resistor idea is specifically for allowing a bypass to place higher voltage on the coil when cranking. 10 volts or so due to the load of the starter motor current draw. This provides starting capability in cold weather, and more reliability. Jim
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Today's Featured Article - The Ferguson System Principal An implement cutting through the soil at a certain depth say eight inches requires a certain force or draft to pull it. Obviously that draft will increase if the implement runs deeper than eight inches, and decrease if it runs shallower. Why not use that draft fact to control the depth of work automatically? The draft forces are
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