I was thinking to construct a high voltage relay since those type of relays are expensive. This relay can be used to remotely fire (with a RC circuit) an EBW or a spark gap.
There would be a spring that will always reset the 2nd electrode to its starting position. When current pass through the DC motor, the 2nd electrode will pass close to the 1st electrode triggering the circuit with an arc. What do you believe, would it be reliable ?
Note that the swich must be as low in resistance and inductance as possible.
Edited by THEONE, 22 June 2018 - 08:09 AM.