Obviously I'm not Jon, but his observation on field current if armature was actually at 68 volts when clips turned red is a good one. I have worked with many generators and even open circuited, have not seen 68 volts. 20 to close to 30 occasionally. So my next recommendation would be to get a decent analog voltmeter, rather than chase ghost with perhaps bogus voltage readings. A reasonable fields test would be to connect a 12v battery with series ammeter between ARM and Field terminals of generator (not running) and measure the field current. Gen housing floating (not grounded). Most will not even see the 4 amperes that I mentioned earlier, perhaps half or less.
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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