Delivered-To: daveyxm@virginmedia.com Received: by 10.67.23.138 with SMTP id ia10csp571003pad; Fri, 27 Sep 2013 12:42:49 -0700 (PDT) X-Received: by 10.180.37.227 with SMTP id b3mr4008172wik.24.1380310968785; Fri, 27 Sep 2013 12:42:48 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com. [195.171.43.25]) by mx.google.com with ESMTP id bq2si3501242wjb.174.1969.12.31.16.00.00; Fri, 27 Sep 2013 12:42:48 -0700 (PDT) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1VPdj8-0003K0-9F for rs_out_1@blacksheep.org; Fri, 27 Sep 2013 20:29:22 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1VPdj7-0003Jq-Sw for rsgb_lf_group@blacksheep.org; Fri, 27 Sep 2013 20:29:21 +0100 Received: from relay.uni-heidelberg.de ([129.206.100.212]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1VPdj5-0007mE-Io for rsgb_lf_group@blacksheep.org; Fri, 27 Sep 2013 20:29:20 +0100 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay.uni-heidelberg.de (8.14.1/8.14.1) with ESMTP id r8RJTIBC028621 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 27 Sep 2013 21:29:18 +0200 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id r8RJTIC8022986 for ; Fri, 27 Sep 2013 21:29:18 +0200 Message-ID: <5245DC89.4020302@iup.uni-heidelberg.de> Date: Fri, 27 Sep 2013 21:29:13 +0200 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <5244AB81.8020503@iup.uni-heidelberg.de> ,<5245765A.3030301@iup.uni-heidelberg.de> <52459149.7070307@iup.uni-heidelberg.de> <00b401cebb94$29946cb0$6d01a8c0@DELL4> <317DFD83703544938DA4CC8A5F5655B3@AGB> <5245BC6B.3090101@iup.uni-heidelberg.de> <3B6E076A8F0E4B52A7495CA0CDB51987@Clemens0811> In-Reply-To: <3B6E076A8F0E4B52A7495CA0CDB51987@Clemens0811> X-Spam-Score: -3.1 (---) 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: Am 27.09.2013 20:51, schrieb Clemens Paul: > [...] > If you are seriously interested in generating a key click free CW signal,there's an > article about that > in QST 5/97 and 6/97 dealing with class E amps which would also apply to class D amps. > > 73 > Clemens > DL4RAJ Yes. Or that one: http://www.classeradio.com/classh.htm [...] Content analysis details: (-3.1 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [129.206.100.212 listed in list.dnswl.org] -2.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: bb61bee384896e075004ae5ec954ddd2 Subject: Re: LF: Re: QRSS OP WSPR Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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=CLICK_BELOW 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: 2867 Am 27.09.2013 20:51, schrieb Clemens Paul: > [...] > If you are seriously interested in generating a key click free CW signal,there's an > article about that > in QST 5/97 and 6/97 dealing with class E amps which would also apply to class D amps. > > 73 > Clemens > DL4RAJ Yes. Or that one: http://www.classeradio.com/classh.htm I even built something similar some months ago. It is possible to adjust the power from 0...> 1 kW with a small potentiometer. Somehow fascinating. It was intended to send slow hell on the LF PA, not key click free CW. The project is maybe 90% finished but then other projects got priority. Image: https://dl.dropboxusercontent.com/u/19882028/LF/20130927_211117.jpg You can read the names of some ICs :-) BTW when will your MF PA be finished? 73, Stefan/DK7FC