[SEDXC] Update on capacitor needed

[John W. Harden, Jr.]

Dear Dave,

I use a Jennings UCSL-1000 Vacuum variable in my 160 meter matching network.
There are many of them out there! Air variables certainly won't cut it in this
application. My matching network will handle several KW.

73,

John, W4NU


"David L. Thompson" wrote:

> I am told to beware of door knob capacitors in high RF situations such as
> the antenna tuner.  I need to stick with either a 6 or 10KV ceramic or an
> old transmitting mica.   I am looking for 1000pf.  I currently use two .0003
> (300pf) in parallel 3750Wvdc transmitting micas.
>
> I found the 10KV 1000pf ceramic for a mere .62 per each in my Antique
> Electronics Supply (the other AES HI).  The rub is they have a minimum
> purchase.   Fair Radio used to have big transmitting micas (I got a 470pf
> 10Kwvdc several years ago) but the only ones they have are
> real big ones now. I will try WB4GNT but he usually has to dig things out
> and I am sure he is going to both Huntsville and Shelby.
>
> Does anyone have something in their junk box I can use?
>
> 73 Dave K4JRB
>
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