# Re: Tesla List

```Mikey
In actuallity, if you are trying to get 1nf, a simple bottle
capacitor(leyden jar) is all that is necessary.  For 10kvac, and higher
capacitance, you might be able to use a rolled capacitor, 20 layers of
saran wrap and aluminum foil.  About 100 square feet of dilectric should
get u at least a 1uf.  Mathematically, it would get u about 3, but it is
quite hard to things super perfect  Check your high school physics book
for the dilectric formula and charge storage.

On Sun, 19 Sep 1999 09:19:53 -0600 Tesla List <tesla-at-pupman-dot-com> writes:
> Original Poster: "Mantic ..." <citnam-at-hotmail-dot-com>
>
> Hi Everyone...
>
>    I know this is a little off of the subject, but after reading
> through
> many coiler's HOWTO's and such, I got quite confused when one person
> said: 1
> millimeter = .001 inch, and another: 1 millimeter = .01 inch. I know
> for a
> fact that: 1 inch = 25.4 millimeters, which would mean: 1 millimeter
> = .039
> inches. A little different from what the others were sayin'. I have
> gotten
> very disgruntled from these documents.
>
>    Ok, so starting fresh: What exactly is the math behind making
> cap.'s
> suitable for Tesla Coils? (Better yet, the spec's.)  More
> specifically
> rolled and plate cap.'s... Understanding that 1 inch = 25.4
> millimeters. How
> many inches thick of a dielectric do I need for a coil about 10kVAC?
> And what are the physical dimensions? I tried everything reasonable,
> (math
> wise, not actual) and nothing would even come close to .001 uFD's.
>
>
> ---Mikey D.
>
>
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