Check out this guy:
http://www.xs4all.nl/~barendh/Indexeng.htm
Barend Hendriksen HF Elektronica BV, The Netherlands
Tel. 0031-575-561866 fax 0031-575-565012
He has an unusual stock of all sorts of HF parts.
Cheers, Dick PA3DUV
----- Original Message -----
From: "Don Knight" <n4dek@triad.rr.com>
To: <rfdude@comcast.net>; <amps@contesting.com>
Sent: Thursday, December 25, 2003 6:11 AM
Subject: Re: [Amps] disk caps needed
> Maybe I don't know what I'm looking for but the capacitor is marked "EKC
.02
> GMV 1.6KV"
> This capacitor goes in an old Heathkit DX-100 transmitter.
>
>
> ----- Original Message -----
> From: <rfdude@comcast.net>
> To: "Don Knight" <n4dek@triad.rr.com>
> Sent: Thursday, December 25, 2003 12:48 AM
> Subject: Re: [Amps] disk caps needed
>
>
> > you can check all your life but you will not find such a capacitor. You
> are talking about a 20 femto farad capacitor. Two post separated several
> inches may come in the ball park. But as a small component that would put
> you in the micron scale size, such as modern FETs or small electronic
> sensors. That small size already rules out 1.6Kv rating as it would lead
to
> tens of mega volt per cm fields, something that most materials will not
> withstand. Perhaps you ment a 20 pF capacitor. Ceramic disk capacitors are
> one type you could find. Others are the door knob type. I made capacitors
in
> the 10 to 50 pF range using mica and brass strips. You wrap an "I" shape
> piece of brass with several layers of mica at one end and then fold the
arms
> of a "T" shape piece of brass over the insulated mica, then squeeze it in
a
> vise until the right cap value is obtained. The size of the brass
determines
> the range in cap values. You need a HV source to test it for breakdown. I
> reached 800 volt with m!
> > inimal effort. I expect you could reach your target voltage with extra
> layers of mica.
> > good luck and 73s
> > kb3bf
> > > Anyone know of a source for some .02pF @ 1.6kv ceramic disk
capacitors??
> I've
> > > checked several places on the web with no luck.
> > > _______________________________________________
> > > Amps mailing list
> > > Amps@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/amps
> >
>
>
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