Thanks for looking at this, I have a 1966 f100 with a 300 and the alt light won’t go off and occasionally won’t start from a dead battery. I just replaced my voltage regulator and alternator and battery is still newish, after driving for awhile I notice that my battery slowly starts to die and the only thing left I can think of is the condenser on the voltage regulator. If anyone has a picture of how the wiring on the alternator should be that should help too (Im pretty sure it’s right but who knows)thanks!