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Re: [TowerTalk] electric fence qrn

To: k4oj@tampabay.rr.com, Pete Smith <n4zr@contesting.com>
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...

Is there a solvent available which when poured onto copper that has oxidation will give it that shiny copper color? I am looking for an easy way out versus burnishing it... if a solvent exists please share that info... pouring some of it on to allow tinning, etc. would be a wonderful way to avoid nicking copper which is always fateful!

73,

Jim, K4OJ


Pete Smith wrote:


At 10:22 AM 12/9/03 -0500, Tony King - W4ZT wrote:

You can help your neighbor with a good ground rod and clamp plus remaking all those one or two twist splices in the high voltage lead.

Split bolts are a wonderful solution to these splices, and a lot easier than taking them apart and redoing them -- they apply a tremendous amount of pressure to the joint, which seems to break through any oxide that has been formed.


73, Pete N4ZR
Happy Holidays
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_______________________________________________

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.

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