Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-de03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 6311F380000AA; Thu, 31 May 2012 12:39:58 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Sa8ON-00034c-VP for rs_out_1@blacksheep.org; Thu, 31 May 2012 17:38:31 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Sa8ON-00034T-Ic for rsgb_lf_group@blacksheep.org; Thu, 31 May 2012 17:38:31 +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 1Sa8OL-0003zD-Pc for rsgb_lf_group@blacksheep.org; Thu, 31 May 2012 17:38:30 +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 q4VGcQro011193 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Thu, 31 May 2012 18:38:26 +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 q4VGcQ33009550 for ; Thu, 31 May 2012 18:38:26 +0200 Message-ID: <4FC79E2E.4070101@iup.uni-heidelberg.de> Date: Thu, 31 May 2012 18:37:02 +0200 From: =?windows-1252?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: <8BE4322932454ABBAF36917E7F0B7293@uwePC> <4FC74C16.1050905@iup.uni-heidelberg.de> <4FC75239.6090105@iup.uni-heidelberg.de> <000601cd3f2d$7877fca0$6d01a8c0@DELL4> <4FC76ECD.8040401@iup.uni-heidelberg.de> <002f01cd3f35$a45c6e70$6d01a8c0@DELL4> In-Reply-To: <002f01cd3f35$a45c6e70$6d01a8c0@DELL4> 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: Jay, MF, I just tried the CMCD and immediately achieved 89% efficiency at 12VDC and 36W RF at 475 kHz (dummy load). Just a first result. I can answer my own question now: Without a load the PA behaves not critical! The current consumption is 0.2A only (including the current of the VFO and exciter) !! :-) I'm going to improve the design now and will publish some photos soon... [...] 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 [129.206.100.212 listed in list.dnswl.org] -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain X-Scan-Signature: 5c1f37c04fc013ebbc2288fd3791d043 Subject: Re: LF: Re: Current mode class D PA for 475 kHz - success Content-Type: text/plain; charset=windows-1252; 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=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: 0:2:434347488:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d40cb4fc79edc256e X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : temperror Jay, MF, I just tried the CMCD and immediately achieved 89% efficiency at 12VDC and 36W RF at 475 kHz (dummy load). Just a first result. I can answer my own question now: Without a load the PA behaves not critical! The current consumption is 0.2A only (including the current of the VFO and exciter) !! :-) I'm going to improve the design now and will publish some photos soon... 73, Stefan/DK7FC Am 31.05.2012 15:59, schrieb jrusgrove@comcast.net: > Stefan > > Thanks for the positive comments. > > Have to admit I haven't been following what you're up to ... curious > what problems you're running into with VMCD at 500 kHz? > > Jay > >