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Re: Sword-like VTTC spark pix at my website
Original poster: "David Trimmell by way of Terry Fritz <twftesla-at-uswest-dot-net>" <davidt-at-pond-dot-net>
John, Excellent example of a nice long Staccato spark! Are you using a
Digital camera? I never shot any photos while playing with Staccato VTTC's,
mostly because I was only getting 18-19" spark from my coil, and I knew it
should be better (plus a film setup is not for the lazy ;-)). New work here?
At 07:38 PM 2/6/01, you wrote:
>Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
>I've posted a couple photos of the straight swordlike sparks from my
>staccato VTTC at my tube coil webpage at:
>The sparks look the same by eye as in the photo, except for a
>slight undulating of the spark, and of course pulsing, if the pulse
>rate is slowed down.
>The coil secondary is 3" by 12", topped with a 6" toroid. The
>tubes are (2) 833A. Powered by an MOT with shunts removed,
>and Dave Sharpe's level shifter circuit. Max spark length is 24",
>but I have it turned down to about 21" in the photo. The spark
>tends to dart around a little at higher powers, making it hard to
>photograph. At faster pulse rates, the sparks take on the normal
>torch like VTTC appearance.