A 41 will have originally used a light switch based gen control. (Low charge, High charge, Dim, Bright) This must be completely out of the system to use a regulator. The F terminal on the gen must be directly connected to the Field terminal on the VR. The wires to the light switch must be abandoned. As John T points out, good grounds must be made at all parts, and the Gen must be polarized (Tractor off, all wires connected, jump for one second between Gen terminal of VR to Bat Terminal of VR making a nice spark) JimN
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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