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Re: Coil Failure
Christopher,
Keeping in mind that I am very new at this I offer the following.
It sounds like your spark gap is way too wide for starters. I am also using
a 15KV -at- 30 ma. NST on my coil. I am using 13 copper pipes inside a piece of
PVC pipe with a spacing of .028 in. between each pipe for a total gap of
about .34 in. Your gap has a total of almost 2 inches if I understood your
description. Not knowing the value of your capacitor, it is hard to suggest
more except maybe 4 or 5 more turns on your primary.
What are you using for a toroid?? What Is the diameter of your secondary ??
How far above the primary is the bottom winding of your secondary??
Good luck on your coil
George Stein
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Friday, May 14, 1999 3:58 AM
Subject: Coil Failure
>Original Poster: Christopher Michaelis <cmichael-at-xmission-dot-com>
>
>I'm getting a bit put out - my coil doesn't give even 6" sparks. Here are
>my problems:
>
>I'm using a 15000kva 30ma neon, with salt water caps (not tinfoil covered,
>but put in salt water with copper tubes out of top). I've got 7 spark gaps
>of 1/4" each, using copper tubing that's been hammered flat. Primary is 7
>turns 1/4" copper wire, and the secondary is 15" of 24 guage wire.
>
>I'm getting very thin, frail sparks off of the top, and I'm getting a
>MASSIVE show inside of the capacitor box -- strange stuff, looks about like
>about 6 coils discharging at once.
>
>Any suggestions?
>
>Christopher Michaelis
>cmichael-at-xmission-dot-com
>
>Programmer, Pretium Corporation
>t:(435) 797-4100
>f1:(435) 753-5608
>f2:(815) 364-1274
>
>