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[AMPS] Vacuum Cap Voltage rating

To: <amps@contesting.com>
Subject: [AMPS] Vacuum Cap Voltage rating
From: wc6w@juno.com (Radio WC6W)
Date: Mon, 16 Jul 2001 18:53:51 -0700

On Mon, 16 Jul 2001 13:46:33 -0400 "KD4LYH" <kd4lyh@earthlink.net>
writes:
>
>
>Hello,
>I just asked a question pertaining to selecting a vacuum cap with the 
>correct voltage rating for a Plate tune cap. Could someone tell me when
=
>using a blocking cap if the peak anode swing is slightly less than the =
>anode supply potential. I plan on using a plate supply of 4kv-4.5kv. 
>Im thinking that a vacuum cap with a 5kv rating for a plate tune cap is
to =
>small. Any comments or suggestions appreciated.
>Jeff
>

Hi Jeff,
   Most of the glass vacuum caps are rated for peak RF voltage at 60% of
their test voltage.  There are a few of the ceramic parts which have
equal test and RF ratings.

   It also depends on the cap in question.  The 5 KV label rating is just
a minimum.  If a particular unit tests at say... 7 KV, then it would be
fine in your application.

73,
  Marv  WC6W







*

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