With "much respec", you are closer than Pete, but still no cigar. "the current in the windings push the contacts apart to avoid discharge." No "pushing apart" , as either direction of current flow or either polarity of shunt coil will pull armature closed. What really happens when gen voltage falls below battery voltage & reverse current flows, is that when current reaches a level that its magnetic field is equal & opposite of the shunt coil field, the two equal & opposite fields cancel & the armature/points are opened by spring.
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Today's Featured Article - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
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