On a 12 volt tractor YES you can EITHER use a full true 12 volt coil (NO Ballast required) or else a 6 volt coil with a voltage reducing (12 to 6) external series Ballast Resistor. A full true 12 volt coil dont require any ballast on a 12 volt system and has a priamry resistance in the neighborhood of 2.5 to 3.5 or so ohms. Theres nothing else required in the ignition priamry system wiring if its a 12 volt coil on a 12 volt system.
Yous sure the voltage reducing ballast resistor was wired correct in series with the coil after the switch and ahead of the coil??? If it were a good ballast (ohms around 1.5 to 2) and was wired correct it should have reduced the current and voltage on a 6 volt coil so it will work and not burn up???
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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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