Return-Path: Received: from rly-dd04.mx.aol.com (rly-dd04.mail.aol.com [172.19.141.151]) by air-dd01.mail.aol.com (v123.3) with ESMTP id MAILINDD013-b6f49b426bc15e; Sun, 08 Mar 2009 16:12:57 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-dd04.mx.aol.com (v123.3) with ESMTP id MAILRELAYINDD041-b6f49b426bc15e; Sun, 08 Mar 2009 16:12:46 -0400 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1LgPLt-0001gc-Ch for rs_out_1@blacksheep.org; Sun, 08 Mar 2009 20:12:01 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1LgPLt-0001gT-0m for rsgb_lf_group@blacksheep.org; Sun, 08 Mar 2009 20:12:01 +0000 Received: from smtp2a.orange.fr ([80.12.242.140]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1LgPLs-0000wj-CS for rsgb_lf_group@blacksheep.org; Sun, 08 Mar 2009 20:12:00 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf2a26.orange.fr (SMTP Server) with ESMTP id 976287000088 for ; Sun, 8 Mar 2009 21:11:52 +0100 (CET) Received: from JR (Mix-Dijon-106-3-215.w193-248.abo.wanadoo.fr [193.248.130.215]) by mwinf2a26.orange.fr (SMTP Server) with ESMTP id BB94C700008D for ; Sun, 8 Mar 2009 21:11:51 +0100 (CET) X-ME-UUID: 20090308201151768.BB94C700008D@mwinf2a26.orange.fr Message-ID: <200903082111260341.1879F498@smtp.wanadoo.fr> In-Reply-To: <1794381892.23372.1236524009509.JavaMail.mail@webmail03> References: <1794381892.23372.1236524009509.JavaMail.mail@webmail03> X-Mailer: Courier 3.50.00.09.1098 (http://www.rosecitysoftware.com) (P) Date: Sun, 08 Mar 2009 21:11:26 +0100 From: "John RABSON" To: rsgb_lf_group@blacksheep.org Mime-Version: 1.0 X-Karma: unknown: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: energy saving bulbs Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 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-IP: 193.82.116.20 I have not noticed any QRM with these bulbs, but I don't seem to get a much=20= greater life than with the traditional ones. Also, a few months ago one of=20= the IEE/IET journals carried a letter from a member who had dissected a dead= unit. It had more than 60 soldered joints, and he suggested that this migh= t cast doubt on the economics of the product over its whole life. I have found another problem. The control gear in these devices is often en= closed in a collar round the base. As most ceiling-mounted sockets (ES or b= ayonet) in this area have a ceramic collar, the new device cannot be inserte= d far enough into the socket to be energised. You have to change the socket= or (in the case of an ES socket) buy an ES to SES adapter and an SES energy= -saving bulb. Given that people have experienced much shorter lives for the= se bulbs than has been claimed, this does seem to raise questions about the=20= economics of these products. John Rabson=20 F5VLF 58800 Cervon France JN17vg *********** REPLY SEPARATOR *********** On 08/03/2009 at 14:53 Peter Cleall wrote: >For many years I have avoided using the energy saving bulbs under the >impression that they were major RF pollutents. I am under increasing >pressure to move to using these bulbs.=20 > >=20 > > Are my concerns still the case or are they old fashioned and out of date.=20 > >Do you have experience of using these bulbs in the home.=20 > >Do modern versions interfer with your Radio receiving , I am interested in >signals from 15 kHz to 500 MHz.=20 > >Are there specific types or manufactures to be avoided=20 > >Any thoughts would be appreciaated=20 > >regards=20 > >peter