rotary gaps

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Original poster: "bob golding by way of Terry Fritz <twftesla-at-uswest-dot-net>" <yubba-at-clara-dot-net>

Hi all,
    I have almost finished my rotary gap and am at the stage of
adjusting the gap spacing. Anyone suggest a good starting point for the
gap. I am running a 8 kv 250 ma radar transformer with up to 97 nF of
cap into a 10" x 42" secondary. It is drawing around 12 amps from my 240
volt supply. The electrodes are 4.8mm tungsten. I am using 4 flying
electrodes and 4 static.

cheers
bob golding