> I think your tractor has a 12 volt coil running > through a ballast resistor -- that"s what my 460 > had. I changed it to a 12 volt coil with an > internal resistor.
Not necessarily an improvement. In typical external resistor systems the ignition switch had a set of contacts that shorted out the resistor when the starter was cranking the engine. This compensated for the fact that the starter pulls the battery voltage down to about 9 volts and gave you extra spark when you needed it.
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Today's Featured Article - Tractor Profile: Case VA Series - by Staff. V, VC, VI and VO). Althouh the Case VA looked much like the V, it shared no major components with its predecessor. Except for military units, the production of the Case VA was interrupted in July of 1942 due to World War II. It resumed again in 1944 and continued until 1953. It started up briefly later on in 1953 and continued on a very limited basis until 1956. The VA Series included the following models: VA: Fixed front wheel tread VAC:
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