You are correct. My thinking was based on the 20 or so amps being pushed in the first go around when the third brush was hitting the main Input (hot) brush. Now that that is operational, the three ohms # is good. I have used resistors out of heater blower motor speed control packs (from cars) to replace them. But I never checked the actual resistance. Oh well. They do need to be able to handle 20 watts or so of dissipation to be realistic. the sealed nature of the box they are in prevents much air cooling. I think the light resistor (on those I"v been into) are open wound spirals The Field resistor is the flat wound unit. There are different designs I think. JimN
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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