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Old 07-16-2019, 05:39 PM   #18
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Join Date: Jun 2014
Location: Williamsburg, VA
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Default Re: options for electronic ignition conversion on my '41

Originally Posted by JSeery View Post
I thought the Bosch blue coil was 3.0 ohms? OK, think I may have misread your post!! Your saying 1.5 ohm primary winding resistance + 1.5 ohm built in additional resistance. Technically there is not an internal added 1.5 ohms of resistance, it's just the windings are such that the primary resistance ends up being 3.0 ohms. But doesn't really matter in this context.
I think I meant what you thought I meant. In summary, the Bosch blue coil has 1.5 ohms of additional resistance over the resistance of the windings, so an external resistor is not needed.
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