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triggered gap
after reading a post to the pupman.com, tesla coilers mailing list about a triggered spark gap for tesla coils, i remembered a xenon arc lamp that i once was setting up to try out as a triggered gap. i posted some questions about it and recieved some very great links from a renound coiler.
these links
http://opto.perkinelmer.com/library/papers/tp10.htm
http://cord.org/cm/leot/course04_mod05/mod04_05.htm
http://cord.org/cm/leot/course04_mod05/mod04_05.htm
i read and cramed as much of it in my mind that i started to see that there realy is no reason why a gap, with enough seperation that the power supply in no way will jump, couldn't be triggered into conduction by another electrode centered between the gap and slightly off center.
i started out by using two stationary electrodes from my sync. rotary gap and a small carbide ball mill as the trigger electrode.
 i hooked up a ford coil driven by a cieling fan speed controler  at first i forgot the cap in the line to the ford coil so the coil got extreamly hot. the great rescources of the TESLA COILERS MAILING LIST reminded me of the need for it to help limit current to the coil? silly me. after conecting the coil in circuit, i then setup a small primary coil with a .0154uf multi mini cap and 9000v 30ma neon sign transformer, compleate with protection filter designed by terry fritz. and total setup ready for firing  i powered all up and......it's working!!
things are looking real good at this point, the gap sounds real good and even without a fan to force quenching it sounds like it's firing at a good 120hz, right on the peaks of the sine wave with the dimmer\speed adjuster set at midpoint in it's travel.
next step is to set it all up on a working coil for some adjustment tests of the dimmer, and maybe get a muffin fan blowing on the gap to help quenching.
here it is setup on my new coil.
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