Re: Spark gap

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

Original poster: "Luc by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ludev-at-videotron.ca>

Hi Ted

Were I can find these tungsten carbide donuts.Could be use in a
trigger spark gap.

Luc Benard

Tesla list wrote:
> 
> Original poster: "Ted Rosenberg by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <Ted.Rosenberg-at-radioshack-dot-com>
> 
> Hi Jason:
> I've been very satisfied with my 9 segment copper pipe linear. Basically, I
> divided the total desired gap (.25) by 8 gaps and made each .03 <I rounded
> for convenience>. the .25 is determined by the primary charging circuit. if
> bigger, too much voltage must build up before firing. if much smaller, too
> little. You want to reach that magic peak of just enough charge in your MMC.
> Someone else can supply the formula...a techy thing.
> 
> This was for my 900W coil which performed flawlessly at the Hangmans House
> of Horrors last October  here in Ft Worth TX.
> 
> Now I am replacing those 9 sweat coupling sections with tungsten carbide
> donuts. Great wear. Not anywhere near the cleaning. Much smaller in size.
> Each donut is .57 diam by .51 high with a .3 hole.
> 
> I am a firm proponent on static gaps for coils below 1000W
> 
> Safety First
> 
> Ted
> 
> ==========================
> Subject: Spark gap
> 
> Original poster: "Jason Petrou by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> <jasonp-at-btinternet-dot-com>
> 
> I have a seven segment linear spark gap - what is the correct spacing to use
> between each piece of copper pipe?
> 
> Jason