Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dk05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7D3DA38000084; Fri, 4 Nov 2011 14:15:31 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1RMOHv-0000cc-5y for rs_out_1@blacksheep.org; Fri, 04 Nov 2011 18:14:47 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1RMOHu-0000cT-Q4 for rsgb_lf_group@blacksheep.org; Fri, 04 Nov 2011 18:14:46 +0000 Received: from smtp5.freeserve.com ([193.252.22.151] helo=smtp6.freeserve.com) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1RMOHs-00050a-NB for rsgb_lf_group@blacksheep.org; Fri, 04 Nov 2011 18:14:46 +0000 Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3527.me.freeserve.com (SMTP Server) with ESMTP id 146531C00087 for ; Fri, 4 Nov 2011 19:14:39 +0100 (CET) Received: from me-wanadoo.net (localhost [127.0.0.1]) by mwinf3527.me.freeserve.com (SMTP Server) with ESMTP id 0725B1C000A8 for ; Fri, 4 Nov 2011 19:14:39 +0100 (CET) Received: from AGB (unknown [2.26.46.148]) by mwinf3527.me.freeserve.com (SMTP Server) with SMTP id D476E1C00087 for ; Fri, 4 Nov 2011 19:14:38 +0100 (CET) X-ME-UUID: 20111104181438870.D476E1C00087@mwinf3527.me.freeserve.com Message-ID: <0E5E96C8DF2F40BB864DB6A29A05A250@AGB> From: "Graham" To: References: <6960E96D-E826-4AD3-A1FF-585BFBEC86A6@numeo.fr> <00d201cc9b1b$d10f60d0$4001a8c0@lark> In-Reply-To: <00d201cc9b1b$d10f60d0$4001a8c0@lark> Date: Fri, 4 Nov 2011 18:14:38 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: avast! (VPS 111104-0, 04/11/2011), Outbound message X-Antivirus-Status: Clean X-Spam-Score: 0.2 (/) X-Spam-Report: autolearn=disabled,RCVD_ILLEGAL_IP=0.234 Subject: Re: LF: Re: PA0RDT whip Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=0.1 required=5.0 tests=MISSING_OUTLOOK_NAME 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-SCOLL-SCORE: 0:2:498230656:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1db4094eb42bc3141f X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none May be noise implications with the larger voltage drop of a conventional diode .. a foreword conducting diode is a noise source ... so perhaps a reverse larger derive across the supply would be more appropriate ? G.. -------------------------------------------------- From: "Alan Melia" Sent: Friday, November 04, 2011 6:01 PM To: Subject: LF: Re: PA0RDT whip > > Hi John, It just gives a lower voltage drop but the unit only takes about > 60mAmax I think. A Si would do the job. > Alan > G3NYK > ----- Original Message ----- > From: "John Rabson" > To: > Sent: Friday, November 04, 2011 5:51 PM > Subject: LF: PA0RDT whip > > > LF, > > I see from the RSGB Handbook that there is a Schottky diode in series with > the +12 line. Does it have to be a Schottky device? > > John F5VLF > > >