I have a bin full of old coils from Farmall Tractors. Most of them are not marked 12 or 6 volt....if they were at one time, it's rubbed off by now. Also, they aren't marked as to wether the ballast resistor is required or not.
For the ones I can't identify, is there a way to do this. I needed one earlier and it didnt' have any markings except for "Made in USA". I went ahead and put it on 12 volt tractor.
How can I know if its a 6 or 12 volt coil, and how can I know if the ballast resistor is required or not??
For the ones I can't identify, is there a way to do this. I needed one earlier and it didnt' have any markings except for "Made in USA". I went ahead and put it on 12 volt tractor.
How can I know if its a 6 or 12 volt coil, and how can I know if the ballast resistor is required or not??