Another reason to be leery of crimp connectors. My soldered connector stubs are still fine after 25 years at 2 locations in very high humidity enviroments.
Carl KM1H ----- Original Message ----- From: "Jim Brown" <j...@audiosystemsgroup.com> Cc: "TopBand" <topband@contesting.com> Sent: Thursday, June 21, 2012 12:15 PM Subject: Re: Topband: Chokes for Beverages > On 6/21/2012 8:47 AM, Guy Olinger K2AV wrote: > >> I have recently replaced some "RG-6" in use for maybe seven or eight >> years. I opened it up to see what was happening. The degree of >> oxidation on the inside and outside of the foil was perplexing. One >> could easily draw a thumbnail along either side and build up a little >> pile of oxide. The foil itself had become very brittle. It had been >> "sealed" and treated outside. > > In the most recent version of his excellent book on Interstation > Interference, George, W2VJN, noted that he had observed deterioration of > stubs made with LMR400 that had been stored in his garage for a period I > seem to recall was on the order of 8 years. Although a properly > installed connector (and no doubt that George did that) should make > excellent contact with the braid, which is tinned copper, differential > current will be on the inner surface of the shield, which is foil. > > 73, Jim K9YC > > > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1424 / Virus Database: 2433/5083 - Release Date: 06/21/12 > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK