X-GM-THRID: 1234548235468190978 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.35.22.8 with SMTP id z8cs243931pyi; Mon, 23 Apr 2007 12:35:45 -0700 (PDT) Received: by 10.66.252.4 with SMTP id z4mr1493ugh.1177356944770; Mon, 23 Apr 2007 12:35:44 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id u6si145927uge.2007.04.23.12.35.41; Mon, 23 Apr 2007 12:35:44 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Hg4BA-0001TX-Fi for rs_out_1@blacksheep.org; Mon, 23 Apr 2007 20:26:28 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Hg4BA-0001TO-2F for rsgb_lf_group@blacksheep.org; Mon, 23 Apr 2007 20:26:28 +0100 Received: from smtpout0132.sc1.he.tucows.com ([64.97.136.132] helo=n066.sc1.he.tucows.com) by relay2.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Hg4B9-0007Xe-3h for rsgb_lf_group@blacksheep.org; Mon, 23 Apr 2007 20:26:27 +0100 Received: from g3kev (62.252.232.121) by n066.sc1.he.tucows.com (7.2.069.1) id 45FC2B720024B183 for rsgb_lf_group@blacksheep.org; Mon, 23 Apr 2007 19:26:20 +0000 Message-ID: <000a01c785dd$456ebba0$79e8fc3e@g3kev> From: "hamilton mal" To: "rsgb" Date: Mon, 23 Apr 2007 19:25:40 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Spam-Score: -0.0 (/) X-Spam-Report: autolearn=disabled,AWL=-1.177,SUBJ_ALL_CAPS=1.166 Subject: LF: 500 EASY START Content-Type: text/plain; charset="iso-8859-1" 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=0.6 required=5.0 tests=SUBJ_ALL_CAPS 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 Status: O X-Status: X-Keywords: X-UID: 2960 Hi All An Easy Start solution for 500 is to use an existing HF rig modified for 5 mhz tx at low power, then shape the sine wave to sq wave with a single chip and divide by 10 with another chip then a driver chip to a fet pa, then lpf and you are in business. A single fet class E pa is sure fire and so simple to build. Mine went first time. My solution for an exciter is an IC 706 on 5 mhz and also used on 13.7 mhz for LF used. This is a vy stable sig source. If anyone needs more info about type of chips etc let me know. 73 de Mal/G3KEV