Re: Top Toroid

• To: tesla-at-pupman-dot-com
• Subject: Re: Top Toroid
• From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
• Date: Mon, 3 Feb 1997 10:04:03 +1200
• Subscriber: MALCOLM-at-directorate.wnp.ac.nz Sun Feb 2 17:47:10 1997

Hi Dave,

> OK I have a capacitance meter and several toroids, can they be measured
> directly or do you put them on top of an inductor and from the freq. shift
> calculate the capacitance?
>  __     __
> /  \   /  \
> \__/   \__/  does the capacitance change much if the toroid
>  __ ___ __
> /         \
> \__ ___ __/ is filled in the middle. I would think the E-field looks
> similar.

I tried exactly that a year ago by draping foil over the top of my 
lonely toroid and got absolutely no change in its capacitance.

Malcolm
<snips>

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