[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: SISG first sparks!

Original poster: Mr Gregory Peters <s371034@xxxxxxxxxxxxxxxxx>

Hi Terry,

At last, some sparks - something a simple mind like mine can relate
to, and no technical mumbo jumbo! Hehe. Just wondering what the
appearance of the sparks is like. Are they like a conventional SG
coil, with jagged streamers, or the more like the brushy fiery sparks
of an SSTC? Nice work!


Greg Peters
Department of Earth Sciences,
University of Queensland, Australia
Phone: 0402 841 677

----- Original Message -----
From: Tesla list <tesla@xxxxxxxxxx>
Date: Saturday, May 13, 2006 10:52 am
Subject: SISG first sparks!
> Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
> Hi,
> I wired up some odds and ends and put the gap on a coil:
> http://hot-streamer.com/temp/SISG-006.jpg
> http://hot-streamer.com/temp/SISG-007.jpg
> http://hot-streamer.com/temp/SISG-008.jpg
> The firing voltage is 1800V and it is running about 60BPS.  The
> arc
> to ground is 5 inches.
> The coil is 150kHz and the primary cap is 150nF so the bang energy
> is
> 0.243 Joule.  So its about 14.6 watts.  The old IGBT got just
> barely
> warm and the new one stayed cool (no heatsinks).
> This system was very far from optimal, but it did make nice sparks
> with the new gap ;-))  When I get a lot more IGBTs, I can run it
> at
> 100 times the power ;-)))
> Cheers,
> 	Terry