Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 2CB6A38000081; Sat, 17 Dec 2011 06:03:28 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Rbs2F-0007KL-5J for rs_out_1@blacksheep.org; Sat, 17 Dec 2011 11:02:35 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Rbs2E-0007KC-LU for rsgb_lf_group@blacksheep.org; Sat, 17 Dec 2011 11:02:34 +0000 Received: from mailout-de.gmx.net ([213.165.64.23]) by relay1.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1Rbs2C-0001OX-4w for rsgb_lf_group@blacksheep.org; Sat, 17 Dec 2011 11:02:34 +0000 Received: (qmail invoked by alias); 17 Dec 2011 11:02:26 -0000 Received: from p4FD0CEA4.dip.t-dialin.net (EHLO Clemens04) [79.208.206.164] by mail.gmx.net (mp003) with SMTP; 17 Dec 2011 12:02:26 +0100 X-Authenticated: #17214767 X-Provags-ID: V01U2FsdGVkX18kNJQuCZckGBgFEoJ16Hqr4rEAccChR2UUjJ6+Ex iGMUIrjM5h/K6M Message-ID: <033201ccbcab$5c5fe640$1502a8c0@Clemens04> From: "Clemens Paul" To: References: Date: Sat, 17 Dec 2011 12:02:22 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3664 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3664 X-Y-GMX-Trusted: 0 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Wellbrook Loop Content-Type: text/plain; format=flowed; charset="iso-8859-15"; reply-type=response Content-Transfer-Encoding: 8bit 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-SCOLL-SCORE: 0:2:475211328:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d404a4eec76ff406e X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Roelof, > There is a kind of transformer inside Yes,definitely. Andrew Ikin himself says the following about the 'AL1530 SSB Plus' version which is custom made for SSB Electronic (http://www.ssb.de/index.php?cat=c174_Magnetische-Antennen.html) "This design was based on the newer ALA1530+ but with a modified input transformer, to increase the LW/MF gain." 73 Clemens DL4RAJ ----- Original Message ----- From: "Roelof Bakker" To: Sent: Friday, December 16, 2011 1:55 PM Subject: Re: LF: Wellbrook Loop > Hello Andy, > > I have been asking the same question for years, but so far nothing > has been revealed. > I was given two defunct units and on one I have started to remove > the potting compound with a lino cutter. > This is very time consuming and other projects got priority. > There is a kind of transformer inside, but I will have to dig a > little further. > > Terry, I will replace the original Wellbrook design with the design > of LZ1AQ which can be found here: > > http://www.lz1aq.signacor.com/docs/wsml/wideband-active-sm-loop-antenna.htm > > I have made a PCB that fits inside the plastic casing. > So, I guess it is time to build it! > > 73, > Roelof, pa0rdt > > > > ----- > eMail ist virenfrei. > Von AVG überprüft - www.avg.de > Version: 10.0.1415 / Virendatenbank: 2108/4082 - Ausgabedatum: > 15.12.2011