Ballast resistor Q's
First thing I'd try is warm it up and try to get the problem to "show." Then hook a voltmeter to the coil+ and see what it reads. If you lose coil + voltage it's VERY likely a defective ballast.
Make CERTAIN you have the ballast wired correctly. Also determine if your box is a 4 or 5 pin box. You cannot tell by looking, because many 4 pin boxes still have the unused 5th pin. You must use an ohmeter from the pin to see if it's a dummy
The difference:
'4 pin'
Look at the ballast..........it has a "U" cutout at one end. This indexes the ballast so that the correct "side" is hooked to the coil. In reality, the coil resistance of either a 2 or 4 pin resistor is NO DIFFERENT in wiring than an old points resistor.
First thing I'd try is warm it up and try to get the problem to "show." Then hook a voltmeter to the coil+ and see what it reads. If you lose coil + voltage it's VERY likely a defective ballast.
Make CERTAIN you have the ballast wired correctly. Also determine if your box is a 4 or 5 pin box. You cannot tell by looking, because many 4 pin boxes still have the unused 5th pin. You must use an ohmeter from the pin to see if it's a dummy
The difference:
'4 pin'
Look at the ballast..........it has a "U" cutout at one end. This indexes the ballast so that the correct "side" is hooked to the coil. In reality, the coil resistance of either a 2 or 4 pin resistor is NO DIFFERENT in wiring than an old points resistor.
