Thanks for the replies. As a folllow-up, I think that what was installed there was an auto-type coil requiring a resistor, a ballast resistor to go with it, and an auto-type (Fiat?) condenser. I communicated with the PO and he said that the bike once had a radio and that he might have installed that setup to reduce ignition noise on the radio. That would have had to have been one loud radio given the noise this bike makes. I'm back to the stock setup and the bike runs, which I consider a good sign.
Thanks again for the comments.
Jim