Envelope-to: dave@picks.force9.co.uk Delivery-date: Wed, 18 May 2005 09:38:54 +0100 Received: from ptb-spamcore02.plus.net ([192.168.71.3]) by pih-mxcore08.plus.net with esmtp (PlusNet MXCore v1.0) id 1DYK4r-0001BZ-Uv for dave@picks.force9.co.uk; Wed, 18 May 2005 09:38:53 +0100 Received: from Debian-exim by ptb-spamcore02.plus.net with spam-scanned (Exim 4.50) id 1DYK4r-0004ub-3L for dave@picks.force9.co.uk; Wed, 18 May 2005 09:38:53 +0100 Received: from [192.168.101.73] (helo=pih-mxcore07.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.50) id 1DYK4r-0004uY-0p for dave@picks.force9.co.uk; Wed, 18 May 2005 09:38:53 +0100 Received: from post.thorcom.com ([193.82.116.20]) by pih-mxcore07.plus.net with esmtp (PlusNet MXCore v1.0) id 1DYK4p-0005dq-L5 for dave@picks.force9.co.uk; Wed, 18 May 2005 09:38:51 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1DYK3s-0004X8-8M for rs_out_1@blacksheep.org; Wed, 18 May 2005 09:37:52 +0100 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1DYK3r-0004Wz-Hr for rsgb_lf_group@blacksheep.org; Wed, 18 May 2005 09:37:51 +0100 Received: from fh1024.dia.cp.net ([64.97.168.34] helo=n068.sc1.cp.net) by relay.thorcom.net with esmtp (Exim 4.43) id 1DYK3p-0004vQ-4U for rsgb_lf_group@blacksheep.org; Wed, 18 May 2005 09:37:51 +0100 Received: from l8p8y6 (62.252.208.20) by n068.sc1.cp.net (7.0.043) id 4288DEAB0009E70A for rsgb_lf_group@blacksheep.org; Wed, 18 May 2005 08:37:47 +0000 Message-ID: <000c01c55b7c$8c384f20$14d0fc3e@l8p8y6> From: "hamilton mal" To: rsgb_lf_group@blacksheep.org Date: Wed, 18 May 2005 08:37:40 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 X-SPF-Result: relay.thorcom.net: 64.97.168.34 is neither permitted nor denied by domain of virgin.net Subject: LF: CLASS D/E Content-Type: text/html; charset=windows-1252 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-Spam-Filtered: by PlusNet SpamCORE (v4.00s) Content-transfer-encoding: 8bit

Hi All

Where would I find a good book about class D and E amp design including the mathematics? and matching transformer info using ferrite materials for optimum efficiency at RF into 50ohm loads.

I have found some info on the subject but am looking for the ultimate design, if there is such a thing.

73 de Mal/G3KEV