bobs77vet
Well-known member
on my 37 ford flathead i am redoing the igniton circuit (12v negative grnd) and have a 1.3 ohm ballast resistor in series with my 1.5 ohm primary resistance coil. at the coil + terminal i have a voltage reading of 6.33 volts and at the - terminal it was .43 volts with the coil fully hooked up to the stock points distributor. for some reason (which i have no basis for other then memory) i was expecting 9 volts at the + terminal and the 6volts at the - terminal. is the 6.33 volts at the + terminal correct? thks bob