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Re: My 4 inch Tesla Coil (fwd)
---------- Forwarded message ----------
Date: Tue, 23 Oct 2007 13:16:01 +0000
From: David Rieben <drieben@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: My 4 inch Tesla Coil (fwd)
Congratulations! 18 to 20" is just about up to par for a
spark gap driven coil at your power level. I believe you
have pretty well optimized your coil's performance for your
available power. You are correct in your assumption that
even longer sparks are pretty much going to require an
upgrade in the power. A larger toroid requires more power
to force breakout.You can "crunch the numbers" with Bart
Anderson's free online Java Tesla coil designer program.
There are a good number of California coilers on this list
(including Bart Anderson) so I'll leave the CA. Teslathon
question to them.
-------------- Original message --------------
From: "Tesla list" <tesla@xxxxxxxxxx>
> ---------- Forwarded message ----------
> Date: Tue, 23 Oct 2007 00:54:26 EDT
> From: Ln2guy42@xxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: My 4 inch Tesla Coil
> Hello Everyone!
> I'm 14 years old and I recently built a tesla coil, and I was wondering if
> it is up to par with the other 4 inch diameter tesla coils out there and if
> not, how I can improve it. The power supply is a 6,000 volt 30 ma NST, so 180
> watts. The capacitor is an 8000 volt .005 mica capacitor in parallel with a
> beer bottle capacitor, so the total capacitance is around .01 mfd. I have
> heard many people saying that mica capacitors are very "fragile" and can die
> easily, but I haven't had any problems with it whatsoever. The coil is 4
> inches in diameter and is 22 inches long. The primary is copper tubing 1/4 inch
> At best, I can get around 18-20 inches of arcing. Many of the other 4 inch
> tesla coils I have seen on Youtube have a much larger toroid than mine, but
> when I add a bigger toroid, the arc gets smaller regardless of tuning. I think
> this is because my coil is underpowered but I'm not sure. I would greatly
> appreciate any comments.
> This is the link to the video.
> Thank You so Much!
> Bye the way are there going to be any Teslathons in California?
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