Re: triggerd spark gap??

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Esondrmn-at-aol-dot-com>

In a message dated 5/22/02 9:33:28 PM Pacific Daylight Time, tesla-at-pupman-dot-com
writes:


>
> Josh,
>
> My experience with TSGs interspersed below:
> ----- Original Message -----
> From: "Tesla list" <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Wednesday, May 22, 2002 6:54 AM
> Subject: triggerd spark gap??
>
>
> Original poster: "J Dow by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <jdowphotography-at-hotmail-dot-com>
>
> Hello all
> My name is Josh I'm 24, a fellow coil builder in Boston and a member of the
> tesla-2 list. I've been making coils for about 2 years now.
> I am looking onto making my first TSG (Triggered Spark Gap).
> It looks easy enough to construct and operate. I have been reading lost of
> list posts and
> Web pages and I believe I can start construction.
> I do have a few questions:
> 1. Can a TSG be made to trigger the gap at a higher BPS? Instead of 120 BPS
> what about 240 BPS? I want to get more out of my MMC.
>
> Yes, I have run them up to 1000BPS with a DC supply.  If you are using AC,
> then you are stuck at 120 BPS.  If you run at 240 BPS, then every other
> pulse will be at the zero point of the sine wave, resulting in zero power
> going into the primary.



- snip - 

I use my synchronous rotary gap at 240 bps and it works great.  The firing
takes place at approximately 45 degrees before and after each peak of the sign
wave.

Ed Sonderman