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tubman · 07-07-2025, 02:16 PM

Yes, it comes down to coil availability. The post '49 coils did not have a resistor. You want a coil with 1.5 ohms primary resistance. A straight replacement for a '49-'53 Ford would be best. Who knows, you may find a 6 volt Mallory "Best" coil that looks great and works well. In any event I would absolutely eliminate the original '40 resistor because you do not want to mix ignition types. The '40 ignition resistor works on a completely different principle than a modern ballast resistor.

Sorry about the mistake on the "Blue" thing. I do know there is a 6 volt Volkswagen replacement from Bosch that works.

07-07-2025, 02:16 PM	#15
tubman Senior Member Join Date: Dec 2013 Location: Minnesota, Florida Keys Posts: 11,629	Re: Resistor Coil Yes, it comes down to coil availability. The post '49 coils did not have a resistor. You want a coil with 1.5 ohms primary resistance. A straight replacement for a '49-'53 Ford would be best. Who knows, you may find a 6 volt Mallory "Best" coil that looks great and works well. In any event I would absolutely eliminate the original '40 resistor because you do not want to mix ignition types. The '40 ignition resistor works on a completely different principle than a modern ballast resistor. Sorry about the mistake on the "Blue" thing. I do know there is a 6 volt Volkswagen replacement from Bosch that works. Last edited by tubman; 07-07-2025 at 02:22 PM.