Ron's Capacitor Discharge Induction set-up uses the original Magister feed coil and points, and the condenser we used in the external unit is a standard Kettering type. It would be interesting to see a voltage measure across the condenser and I'll see what I can get. Presumably the high voltage pulse through the coil is "stored" in the condenser and this part should be critical for the unit to work effectively and to last. Regarding the high apparent failure rate of the external units, it is possibile that in miniaturising the original unit, the coil itself was too small or fragile for the job.
Regards,
Grant.
