Re: Spark Gap question

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

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

1000V per gap? That sounds too low to me. If I were
building it, I'd use 9 electrodes to make 8 gaps
spaced .01" to .02" each. 1.5" copper pipe? Maybe if
you're trying to quench a pole pig! For a single NST,
1" or even 3/4" pipe will work fine and give you a
cheaper and more compact gap. My first RQ gap used 9
chunks of 3/4" Cu pipe inside a scrap of 4" PVC. A
4.25" muffin fan sat on top, and the bottom was left
open. It could run a single 15kv/30ma NST all day
long. I'm sure it could have handled a 15/60 in
intermittent operation.

Regards,

Greg
http://hot-streamer-dot-com

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Johnson, Jeffrey D -at- PWC by way of
> Terry Fritz <twftesla-at-qwest-dot-net>"
> <jeffrey.d.johnson-at-l-3com-dot-com>
> 
> This question is regarding the famous RQ/TCBOR gap. 
> I've read that you
> should use 1.5" copper pipe and figure on 1000 V per
> gap.  If I'm running a
> 15kV NST that means I need 2 to 3 six gap assemblies
> in series.  Can't I
> just use 1" pipe and put 15 2" pieces inside a 6"
> section of PVC?  
> 
> JJ
> 
> 
> 
> 


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