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JSeery · 09-07-2020, 07:37 PM

"Took the measurement on my 49 Ford and it read 11/2 Amps and not the 3to4 Amps as stated in the prior posts. What does that indicate? Positive Ground System with original coil and distributor. Thanks! "

6v or 12v doesn't make a difference with the amperage you are wanting at the points. It is controlled by the total resistance in the circuit. With 6v that is ~1.5 ohms and with 12v it is ~3.0 ohms. I just don't have the experience with the original Ford coils to provided an intelligent answer, but I would presume you are wanting the same current flow and the same amperage at the points.

What ballast resistor are you using?

09-07-2020, 07:37 PM	#28
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: over heated coil "Took the measurement on my 49 Ford and it read 11/2 Amps and not the 3to4 Amps as stated in the prior posts. What does that indicate? Positive Ground System with original coil and distributor. Thanks! " 6v or 12v doesn't make a difference with the amperage you are wanting at the points. It is controlled by the total resistance in the circuit. With 6v that is ~1.5 ohms and with 12v it is ~3.0 ohms. I just don't have the experience with the original Ford coils to provided an intelligent answer, but I would presume you are wanting the same current flow and the same amperage at the points. What ballast resistor are you using? Last edited by JSeery; 09-07-2020 at 08:01 PM.