Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-di05.r1000.mx.aol.com (Internet Inbound) with ESMTP id 9302E380000AC; Sat, 15 Dec 2012 11:18:42 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1TjuR6-0001hP-Qb for rs_out_1@blacksheep.org; Sat, 15 Dec 2012 16:18:00 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1TjuR6-0001hE-CO for rsgb_lf_group@blacksheep.org; Sat, 15 Dec 2012 16:18:00 +0000 Received: from mail-wi0-f171.google.com ([209.85.212.171]) by relay1.thorcom.net with esmtps (TLSv1:RC4-SHA:128) (Exim 4.77) (envelope-from ) id 1TjuR4-00051s-Eo for rsgb_lf_group@blacksheep.org; Sat, 15 Dec 2012 16:17:59 +0000 Received: by mail-wi0-f171.google.com with SMTP id hn14so1114719wib.10 for ; Sat, 15 Dec 2012 08:17:37 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=Id7y/kB0MX7YXNZ6PH8vV88nhBjvSmoyrz5fnIsgf+U=; b=IG+kVrjmvzJJ2EyqPSfYribLBpDD34ANeBtUAHt1xM8P8lHtnDn8DP5r3FUFUt1/Ny yOuL709kz/27nolf/OWn9vU20NXZkUqaZLyhBYAYDupYJPYwj5ffA1PVCJgAV5WNErnq Sxbb9kx4PUfCJqDlf6FGeuDt5YqzYQcxCfVdYKZQMguRrNkEdwXOtsMUFnjBL6LiFsNo zPM20GvxWMvoxZdkSGPyWRR/WY2/I7xFWcpkosCKl5NqpYj/ugWImbRkaGpNSPuH39K8 TV2oDtOGUSTS8Hav+fyEynXtsM/euIUcv+vVkvLk9aMplMukRZKHoDs65/yOvjt5JAh/ 43BA== MIME-Version: 1.0 Received: by 10.194.179.34 with SMTP id dd2mr9197881wjc.1.1355588257572; Sat, 15 Dec 2012 08:17:37 -0800 (PST) Received: by 10.194.172.129 with HTTP; Sat, 15 Dec 2012 08:17:37 -0800 (PST) Date: Sat, 15 Dec 2012 11:17:37 -0500 Message-ID: From: Warren Ziegler To: rsgb_lf_group X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello the list... Since my G0MRF is experiencing intermittent short circuit in the final amp, I plan on re-doing the output circuit per the M0BMU modification: http://www.g0mrf.com/images/300w/PA_schematic.jpg The M0BMU mod changes the circuit to a current fed design which improves the efficiency. The mod calls for a transformer primary winding using 12 strands of 0.3mm e.c.w. (enamel covered wire). I assume that the 12 strands are used to improve the Q similar to the way Litz wire works? Has anyone done this mod? Has anyone tried alternatives to the 12 strands of enamel wire? [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.212.171 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (wd2xgj[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 4b5b5ebe37a4c4f430f59bc35c1947b0 Subject: LF: M0BMU mods to the G0MRF PA Content-Type: multipart/alternative; boundary=089e0141a0028de5e004d0e67c0d 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=HTML_MESSAGE 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-AUTHENTICATION: mtain-di05.r1000.mx.aol.com ; domain : gmail.com DKIM : fail x-aol-sid: 3039ac1da60950cca2e219cd X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --089e0141a0028de5e004d0e67c0d Content-Type: text/plain; charset=ISO-8859-1 Hello the list... Since my G0MRF is experiencing intermittent short circuit in the final amp, I plan on re-doing the output circuit per the M0BMU modification: http://www.g0mrf.com/images/300w/PA_schematic.jpg The M0BMU mod changes the circuit to a current fed design which improves the efficiency. The mod calls for a transformer primary winding using 12 strands of 0.3mm e.c.w. (enamel covered wire). I assume that the 12 strands are used to improve the Q similar to the way Litz wire works? Has anyone done this mod? Has anyone tried alternatives to the 12 strands of enamel wire? 73 & tnx Warren K2ORS -- 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 --089e0141a0028de5e004d0e67c0d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hello the list...
=A0 =A0 =A0 =A0Since my G0MRF is experienc= ing intermittent short circuit in the final amp, I plan on re-doing the out= put circuit per the M0BMU modification:
=A0 =A0 =A0 =A0The M0BMU mod changes the circuit to a current fed desi= gn which improves the efficiency. The mod calls for a transformer primary w= inding using 12 strands of 0.3mm e.c.w. (enamel covered wire).=A0
I assume that the 12 strands are used to improve the Q similar to the way = Litz wire works?=A0
=A0 =A0 =A0 =A0 Has anyone done this mod? Has anyone tried alternative= s to the 12 strands of enamel wire?

=A0 =A073 &= ; tnx Warren K2ORS


--
73 Warren K2OR= S
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XSH/23
=A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 WE2XEB/2
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1

=A0
--089e0141a0028de5e004d0e67c0d--