Re: what capacitor for TC...other newbie questions

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Original poster: "Charles Hobson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <charles.a.hobson-at-btinternet-dot-com>


----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, July 07, 2001 2:39 AM
Subject: Re: what capacitor for TC...other newbie questions


> Original poster: "richard williams by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <rickwilliams404-at-earthlink-dot-net>
>
> What are the thoughts on metallized polyester?
> I have 4 .022uf -at- 16000vdc. These can be found at Allied Electronics:
> http://www.alliedelec-dot-com/catalog/pf.asp?FN=571.pdf
>
> Though it's a DC spec there is no polarity on these caps. No AC spec is
> provided but it would be less than the 16Kv DC rating.

 Big snip

Hi Richard,

I made some capacitors using polyester dielectric (drafting film) and found
them too lossy at RF ~100kHz. I would be wary of them

Chuck