RE: Proper sparkgap for a small coil design *

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

Original poster: "Gary Weaver" <gary350-at-earthlink-dot-net> 



This is what I use on a 15K 30 ma TC.  check the pic.

http://home.earthlink-dot-net/~gary350/spark1.jpg


9 copper tubes 3/4" x 2" long with .030 gaps and a jumper wire for tuning
the gaps.  Its all mounted inside of a piece of 4" pvc pipe with a 4" box
fan.

Gary Weaver



 >   >
 >   > I am new to this and just added a note about the clamps I use and
 > your  > reply brings up a question. I just started to make parts for my
 > first  > coil. The power will be from a 15Kv 30ma NST . I just completed
my
 > spark  > gap and it is 9 tubes about 4.5 long spaced, .030 . The material
 > is 7/8  > dia 6al4v Ti ( left over from BMX bike stuff). Was this a bad
 > choice for  > material ?? I thought it would hold up well.  >  > Rich
 >
 >
 >
 >
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