Re: New to the group

> A static gap only 
> fires twice per mains cycle, 100 times for 50Hz (UK) 120 times for 60Hz (US)

Depending on the gap spacing, you can get multiple gap firings from a
static gap.  My small coil under loow power with just a few gaps in series
can give me 3 or 4 firings per half cycle.

Rotary gaps come into their own with high power systems where quenching of
a regular static gap would be difficult or impossible.

Steve Roys.