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Re: Spark Gap Type help
Original poster: "Metlicka Marc by way of Terry Fritz <twftesla-at-uswest-dot-net>" <mystuffs-at-orwell-dot-net>
i think you might try the sync. triggered gap. i've pushed 5.25kw
through the blown gap
with no problems but you may want to use a multistatic design with a
center electrode as the trigger. the dimmer\coil setup is amazing
because of the simplicity plus giving the same and it actually looks to
me as better output then my sync. rotary gap, and it doesn't draw much
i cut a glass tube so that i could hook it to a large volume blower i
have, but i also hooked it to my static gap, on my site, by tapping at
each end and using the center as the trigger.
it's so easy why not give it a try?
Tesla list wrote:
> Original poster: "tesla by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> I could use the thoughts of an experienced coiler re a better spark gap for
> my coil.
> Coil runs 4kW Input from 6 MOTs, 13kVrms,90nF MMC,85kHz(w,topload),Sec12"
> dia x53"Hgt, 12"x44"toroid, Pri tunes -at-9turns of1/4" Cu tube, K of coil is
> 0.1 or so.(need to measure again)
> Tried 5 section Cu Pipe Static gap blown to keep cool. This used with up to
> 4 MOTS. Best results with this config BUT mains I/P is high and tends to
> surge at times and blow breakers.
> SRSG 100bps. Smooth Mains current over large I/P from variac. Lots of
> acoustic O/P from gap and fierce SRSG operation. Used up to 6MOT's. Streamer
> O/P consistient BUT less than Static. (Phase control and settings optimised
> SRSG/STATIC in Series. Smoothest operation low stress on SRSG. Lowest
> streamer O/P (due >> gap losses ??).
> I've concluded Static has lowest lossses and probably best quenching up to
> about 3kW with 4 MOT's but would not want to try current SRSG at >3kW. Has
> anybody tried a STATIC of any type that they think would handle >3kW from
> 6MOT's and can point to some WEB refs for it.
> BTW when the Tesla is going well it can do 72" but streamers still generally
> seem to lack that thick high energy look most of the time.
> Tnx all
> Ted Linney in NZ