Hi Lorne,
Thank you for your (genuinely) wise words!
During the TalkMorgan interchange that I initiated as a result of my problems, I did indeed check the GoMog website, and that plus the prior contributions led me to conclude that I needed to include a ballast resistor in my ignition system - whoever had originally installed the Mallory distributor definitely failed to do on my car. The coil that the car burned out previously was a standard Bosch one for TCI ignitions.
Tomorrow I will order said resistor, together with a replacement Mallory ignition module; I don't want to take any chances!
Greetings and best wishes from North Yorkshire,
Dave
