All of the six volt Delco generator that I have seen have a band around where the brushes are. The twelve volt ones that I have seen do not. The original 6V Delco regulators have two screws in the top in diagonal corners. The 12 V ones have the cover screws , one on each side at the edge of the lower edge.
Hotrod's suggestion will give you the very best chance of success. Also when I am waking up an old engine, I like to power the coil from a separate source so the voltage doesn't get dragged down by the starter draw.
Last edited by truckernix; 11/30/2022 8:49 PM.
