Re: Variable capacitor

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

Original poster: "Jonathan Peakall by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jpeakall-at-madlabs.info>

Hi All,

Here's a random thought: Would it help to add some of that "spot free" type
dishwasher stuff? Or something else to help the solution shed more quickly?

Regards,

Jonathan Peakall


> 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.
>
> However  might not "live-tuning" still be a problem with salt-water
> capacitors  due to the short-term adherence of the solution to the
container
> wall increasing the plate size (and hence capacitance) above the desired
> value whenever a reduction in capacitance was required?
>
> Jolyon
>