In most simple voltage regulators you will see two sets of coils/contacts. One is the cut out, just like your cut out. Before staring, these points will be open, preventing the generator from drawing on the battery. Power from the generator should pull these points closed upon start up. The other set is the regulator, and these points will be closed, under spring pressure. As you start up and get some charging, the coil vs the spring do a delicate dance to "regulate" voltage. So delicate, your eyes can't work fast enough to see it. Any simple cut out systems I'm familiar with on older tractors have a low/high switch, along with the adjustable third brush generator, giving you some choice based on how you use the machine.
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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