In Reply to: No spark posted by Dave2N on August 05, 2017 at 10:01:01:
They will fail in minutes if you leave the key on.
They will fail in a few months if you are not using suppression spark plug wires.
BTDT w/ a 1950 MG.
Google Pertronix for specific troubleshooting info. Basically, make sure you have battery voltage to the module and that it turns off/on when the engine rotates.