Carbon tracking on coil

by jerrytrey   Last Updated October 18, 2019 16:25 PM - source

I built this circuit using a relatively small two wire ignition coil.

https://www.instructables.com/id/Variable-voltage-ignition-coil-power-supply/

When I ran the circuit, no spark occurred meaning I believe the secondary coil was open. As mentioned in the video below, an open secondary can damage the coil from carbon tracking ect. Do you think the coil is damaged? I ran the circuit for around 2 min max (in intervals).

https://m.youtube.com/watch?v=YKntQheRHHw

It’s worth noting that the capacitor I used was a diy job, and I believe the capacitance was around 5nf.



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