I'll have to check my H but I'm pretty sure that the words "internally ballasted" are silk screened on the coil. It was purchased from Tractor Supply.
That, to me, says that at least some 12V coils do have resistors in them. From a production standpoint, it's certainly more efficient to have the coil winder doing one thing, than having to operate/maintain two coil winders, or switch the one you have back and forth between winding 6V and 12V coils.
Most of that big white chunk on a ballast resistor is ceramic material. The actual resistor is not very large, and could be tucked into the middle of the coil quite easily.
Anybody know why they encase the resistor in ceramic? Ceramic is normally not a good heat sink, and is awfully brittle to call it protection.
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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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