Re: Best case senario secondary output?

• To: tesla-at-pupman-dot-com
• Subject: Re: Best case senario secondary output?
• From: "Barton B. Anderson" <tesla123-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 22 Feb 2000 20:35:28 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

> Original Poster: "Bryan Miller" <ftbll-at-MailAndNews-dot-com>

Hi Bryan,

Maybe 4 or 5 inches more, but it's hard to predict this. Your term
"optimized" is
misleading. Spark length predictions can be based off input watts without other
variables and would probably prove more accurate for this kind of question.
But,
that term "optimized" can mean a whole lot of things.

John Freau's equation of spark length is probably the type of answer your
looking
for:
Spark Length in inches = sqrt (input watts) * 1.7

So, with this you can easily derive that the input watts at 12,000 x 0.030
= 360
W. The square root of 360 is 18.97366596 * 1.7 = 32.25 inches. Now that you've
based your optimized spark length off of input watts, the question is can you
really acheive this. The answer is "maybe yes and more" or "maybe no".
That's the
real "fun" and "frustration". This is why I like to take lots of the other
parameters into consideration and compare it to John's equation. Sometimes it's
within millimeters, sometimes it's way off. I just wish I had everyone's
coil at
my house to see what really happens and why <grin>.

Bart


>
> While on the subject.  Could someone give me an optimized spark length
using a
> 12kV 30mA NST?  Thanks for the help!
>
> Bryan Miller
>
> >>
> >>     I am looking to optimize my secondary output with my current NST, so I
> >> was wondering what is the absolute best secondary arc length output I can
> >> hope for with a 9KV, 30ma NST.
> >>
> >>     Justin D.

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