Return-Path: Received: from mtain-mi09.r1000.mx.aol.com (mtain-mi09.r1000.mail.aol.com [172.21.131.167]) by air-df06.mail.aol.com (v128.3) with ESMTP id MAILINDF062-5ef74bce3dfa39f; Tue, 20 Apr 2010 19:51:23 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mi09.r1000.mx.aol.com (Internet Inbound) with ESMTP id 65949380005C0; Tue, 20 Apr 2010 19:51:21 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1O4NCj-00082F-Eh for rs_out_1@blacksheep.org; Wed, 21 Apr 2010 00:50:09 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1O4NCi-000826-Tf for rsgb_lf_group@blacksheep.org; Wed, 21 Apr 2010 00:50:08 +0100 Received: from imr-da03.mx.aol.com ([205.188.105.145]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1O4NCg-0004O1-Hq for rsgb_lf_group@blacksheep.org; Wed, 21 Apr 2010 00:50:08 +0100 Received: from mtaout-da02.r1000.mx.aol.com (mtaout-da02.r1000.mx.aol.com [172.29.51.130]) by imr-da03.mx.aol.com (8.14.1/8.14.1) with ESMTP id o3KNnq8i025289 for ; Tue, 20 Apr 2010 19:49:52 -0400 Received: from [192.168.1.68] (unknown [92.2.177.200]) by mtaout-da02.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id AFBFDE0001E0 for ; Tue, 20 Apr 2010 19:49:51 -0400 (EDT) From: g4gvw To: rsgb_lf_group@blacksheep.org In-Reply-To: References: <681228559-1271689925-cardhu_decombobulator_blackberry.rim.net-1565535176-@bda171.bisx.prod.on.blackberry> ,<003b01cadfd7$a44098e0$0401a8c0@xphd97xgq27nyf> <003001cae0b0$820545d0$0401a8c0@xphd97xgq27nyf> Date: Wed, 21 Apr 2010 00:49:43 +0100 Message-Id: <1271807383.7567.6.camel@pat-compaq-evo> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: EARTH Content-Type: text/plain Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039400cded14bce3df95f4c X-AOL-IP: 193.82.116.20 Hmmm! That may be so Chris but I never did succeed in getting "her indoors" to allow me to engage her little diamond with a "cat's whisker" to enjoy the harmony of the airwaves. After all, to a radio amateur, a bit of quartz is just a bit of quartz innit? ("ouch, that hurt" sez he dodgin' a frying pan!) 73 de pat g4gvw On Tue, 2010-04-20 at 23:54 +0100, Chris Trayner wrote: > Mal and others, > > > On 2010 Apr 20, at 18:40, mal hamilton wrote: > > I have not investigated gold v silver but high quality low loss plugs/socket > > pins are gold plated, if what you say is correct why not silver? > > Silver does tarnish with time and it's not just cosmetic. > We have a couple of LCR meters at work with sliding contacts to take the leads of the components. After some years (probably more than ten) these contacts became erratic. Opening the units up, I found the sliders slid on silver-plated strips which had become tarnished. Cleaning them restored reliable operation. > > Wedding rings, of course, are intended to maintain good connections between man and wife for the expected lifetime of the units ... > > 73, > Chris G4OKW > > ----------------------- > Dr Chris Trayner > School of Electronic & Electrical Engineering, > The University of Leeds, > Leeds LS2 9JT, United Kingdom > Tel: +44 113 34 32053 > Fax: +44 113 34 32032 > > -- 73 es gd dx de pat g4gvw qth nr felixstowe uk (east coast, county of suffolk)