To: | k4oj@tampabay.rr.com, Pete Smith <n4zr@contesting.com> |
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Subject: | Re: [TowerTalk] electric fence qrn |
From: | Jim Lux <jimlux@earthlink.net> |
Date: | Tue, 09 Dec 2003 14:36:44 -0800 |
List-post: | <mailto:towertalk@contesting.com> |
No solvents, really, since what you are looking at is corrosion/oxidation
(copper oxide is black or red, depending on the form). Various forms of "bright dip" are available... usually consisting of some mixture of nitric and hydrochloric acid. Flux for soldering essentially produces the same effect, with a heat activated chemical reaction (Ammonium Chloride (Sal Ammoniac) and Zinc Chloride (Tinner's fluid) being notable examples). The brush on tinner's fluid is actually a mixture of hydrochloric acid and zinc chloride, historically made by dissolving some zinc in HCl (but not enough Zn to totally react with all the acid).. If you don't want to fool with corrosive acids, one of the commercial brass polishes might work (they use a combination of ammoniacal compounds and a fine abrasive), but watch out for a film that they often leave behind (to prevent tarnishing). At 04:42 PM 12/9/2003 -0500, Jim White, K4OJ wrote: On this note... _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA. _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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