Return-Path: Received: from rly-da05.mx.aol.com (rly-da05.mail.aol.com [172.19.129.79]) by air-da10.mail.aol.com (v121.4) with ESMTP id MAILINDA101-a7047d2de7931f; Sat, 08 Mar 2008 13:44:27 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-da05.mx.aol.com (v121.4) with ESMTP id MAILRELAYINDA058-a7047d2de7931f; Sat, 08 Mar 2008 13:44:12 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1JY41E-0008CY-LM for rs_out_1@blacksheep.org; Sat, 08 Mar 2008 18:43:40 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1JY41E-0008CP-A3 for rsgb_lf_group@blacksheep.org; Sat, 08 Mar 2008 18:43:40 +0000 Received: from wmsmtp.opaltelecom.net ([62.24.128.253] helo=smtp.talktalk.net) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1JY41B-0007Ph-Ln for rsgb_lf_group@blacksheep.org; Sat, 08 Mar 2008 18:43:40 +0000 X-Path: TTSMTP Received: from unknown (HELO g3kev) ([89.241.129.234]) by smtp.talktalk.net with SMTP; 08 Mar 2008 18:43:28 +0000 Message-ID: <000d01c8814c$4cfd1090$0301a8c0@g3kev> From: "mal" To: "rsgb" Date: Sat, 8 Mar 2008 18:43:27 -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-Karma: 0: X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: LF: E AMP 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=0.0 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 X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_helo : n X-AOL-SCOLL-AUTHENTICATION: listenair ; SPF_822_from : n Hi all A few LF/MF operators are already using class E amplifiers and as far as I know are satisfied with their performance. For durability they must be set up exactly as specified for a particular application. The switching has to be exact, so adjust for the correct waveform using a scope. Use a big CHOKE Consult artlicles published by G3NYK, WA1HQC and WA1QIX and a others, use a stiff PSU and you should be home and dry !! 73 de Mal/G3KEV