Re: Variable capacitor

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

Original poster: "gmay38 by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gmay38-at-cox-dot-net>

 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.