Re: Styrofoam top loads

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

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi Chris,

On 27 Sep 2002, at 12:21, Tesla list wrote:

> Original poster: "cd by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<vbprg1-at-hotmail-dot-com>
> 
> I made a torus out of a pool noodle from the pool store
> its was pretty easy to make. Unfortuneatly I havent been able to get it to
> work, but
> my hollow aluminum ducting one works great.
> The pool noodle is made up of open celled PE plastic
> I am guessing I cant get it to work beacuse I
> either cant tune to the point necessary (lack of equiptment/inexperience),
> or its capacitance is so high my system cant drive it?
> 
> Would it be correct in thinking this type of torus would have a much
> greater capacitance than a torus made of hollow aluminum tubing?
> 
> Would a torus with a sytrofoam center have a different capacitance
> than a hollow aluminum torus?
> 
> Can you islolate a torus in space then
>  measure the capacitance with a multimeter?

If you do that, it is no longer isolated.

Regards,
Malcolm