>
>
> > > - Rotary spark gap 1780rpm with 3 tungsten electrodes.
>
My math could be wrong (and usually it is) but that tells me youre running
89 breaks per second?
You should be running 5 - 6 times that.
Im also assuming this is not a synchronous motor.
A SRSG with a phase angle adjuster would be the way to go.
Also, from the photo it looks to be a little under coupled but I think your
main problem is the low break rate of the gap.
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