Hello Paul,
I suggest you ask August (AJ) Link who has been a Jennings distributor for
decades. Here's a link: https://surcom.com
Surcom Associates, Inc
5674 El Camino Real, Suite K
Carlsbad, CA 92008 USA
Phone (760) 438-4420
Best regards,
Larry
WB6BBB
On Sat, 10 Apr 2021 18:47:23 -0400, "Paul Christensen" <w9ac@arrl.net>
wrote:
>Anyone know if it's possible to rebuild a vacuum variable cap? It would
>require a precision break of the seals, then evacuating the air with a new
>seal.
>
>A cap used on my 160m transmit "T" failed a few months ago. While
>dismantling the antenna at the season's end, I brought the cap back home and
>purchased a Megger 230425 Hi-Pot test set. After testing today, the cap
>repeatedly breaks down at 700V, although it's rated for 5KV.
>
>It would be a shame to discard; it's an expensive Jennings ceramic type with
>a range of 25-5000 pF. Used, they're $1,500 ea. from MaxGain Systems. I
>only need a range to about 1200 pF, so I can definitely get by with an
>alternate that's on the shelf. That's not the issue. I would like to save
>the cap if possible. I'm not sure what conglomerate owns Jennings now but I
>doubt they would have a rebuild service when it's much more profitable to
>sell new caps.
>
>Paul, W9AC
>
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