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Total 3 documents matching your query.

1. Topband: Submerging variable caps in oil as substitute for vacuum variables (score: 1): Author: Pete Smith N4ZR <n4zr@contesting.com>; Date: Wed, 29 Jan 2014 17:42:20 -0500; The omega match for my shunt fed tower uses two 300 uF roughly 3000-volt variables I bought from Henry radio a few years ago. I think occasionally about running more than 100 watts on 160, but the co; /archives//html/Topband/2014-01/msg00329.html (7,331 bytes)
2. Re: Topband: Submerging variable caps in oil as substitute for vacuum variables (score: 1): Author: "Shoppa, Tim" <tshoppa@wmata.com>; Date: Wed, 29 Jan 2014 23:10:09 +0000; The author points out (correctly) the tempco issues with oil dielectric. Still I am intrigued by the thought of a remote tuning capacitor via hydraulic tubing :-). The capacitor plates could be as si; /archives//html/Topband/2014-01/msg00330.html (8,646 bytes)
3. Re: Topband: Submerging variable caps in oil as substitute for vacuum variables (score: 1): Author: HAROLD SMITH JR <w0rihps@sbcglobal.net>; Date: Wed, 29 Jan 2014 19:16:09 -0800 (PST); The author points out (correctly) the tempco issues with oil dielectric. Still I am intrigued by the thought of a remote tuning capacitor via hydraulic tubing :-). The capacitor plates could be as si; /archives//html/Topband/2014-01/msg00338.html (9,460 bytes)

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