RE: Variable capacitor

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

Original poster: "Christopher \"CajunCoiler\" Mayeux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <cajuncoiler-at-cox-dot-net>

I'd considered the balloon approach as well, but then I realized that one
would also need to have control of the pressure, so as to not over inflate.
I could just imagine what would go on in there, if a balloon popped inside
a saltwater cap... could get messy.  There's also the monetary factor... a
device to properly inflate/deflate and regulate, might be just a tad outside
of the confines of the average coiling budget.
... and so, insulative object on threaded plastic rod was the better choice,
being simple, and cheap.

> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Friday, October 25, 2002 12:28 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: Variable capacitor
>
>
> Original poster: "Jolyon Vater Cox by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>
>
> Christopher,
> Ffor the non-conductive displacer, how about using an inflatable
> air-filled
> balloon; for more capacitance inflate the balloon to displace more liquid
> for less, deflate the balloon.
> A small compressor -possibly a tyre pump- and an air-release
> valve could be
> used to control the pressure.