Re: Ballast Resistor

In Reply to: Re: Ballast Resistor posted by John S on January 24, 2019 at 09:35:54:

If you know the input resistance of your meter you can possibly buy a resistor to make a voltage divider. Even if you do that, it will not prove much as coils have a tendency to fail when hot and heal when they cool off.

As to why one fails, most likely a break down of the internal insulation. Due to age and heat.

It is always recommended to trouble shoot the problem rather than throwing parts at it. Unfortunately in the case of the coil few of us have the equipment to actually test one. So replacement is the best test.

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