Return-Path: Received: (qmail 27978 invoked from network); 23 Nov 2004 11:53:44 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 23 Nov 2004 11:53:44 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1CWZF1-000Pqo-S2 for dave@picks.force9.co.uk; Tue, 23 Nov 2004 11:53:52 +0000 Received: from [192.168.67.2] (helo=ptb-mxcore02.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1CWZF1-000Pqe-Iz for dave@picks.force9.co.uk; Tue, 23 Nov 2004 11:53:51 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1CWZEr-000PyJ-R6 for dave@picks.force9.co.uk; Tue, 23 Nov 2004 11:53:41 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1CWZEL-0007tz-6r for rs_out_1@blacksheep.org; Tue, 23 Nov 2004 11:53:09 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1CWZEK-0007tq-Sh for rsgb_lf_group@blacksheep.org; Tue, 23 Nov 2004 11:53:08 +0000 Received: from mailhost.ntl.com ([212.250.162.8] helo=mta13-winn.mailhost.ntl.com) by relay.thorcom.net with esmtp (Exim 4.41) id 1CWZE5-0007z8-Eg for rsgb_lf_group@blacksheep.org; Tue, 23 Nov 2004 11:53:08 +0000 Received: from aamta01-winn.mailhost.ntl.com ([212.250.162.8]) by mta13-winn.mailhost.ntl.com with ESMTP id <20041123115248.ZMAL24445.mta13-winn.mailhost.ntl.com@aamta01-winn.mailhost.ntl.com> for ; Tue, 23 Nov 2004 11:52:48 +0000 Received: from mikedennison ([80.4.116.83]) by aamta01-winn.mailhost.ntl.com with ESMTP id <20041123115247.CKQS21208.aamta01-winn.mailhost.ntl.com@mikedennison> for ; Tue, 23 Nov 2004 11:52:47 +0000 From: "Mike Dennison" To: rsgb_lf_group@blacksheep.org Date: Tue, 23 Nov 2004 11:52:45 -0000 MIME-Version: 1.0 Message-ID: <41A3248D.19617.9BEB5D@localhost> In-reply-to: <4194572D.03BEF613.00041B63@aol.com> X-mailer: Pegasus Mail for Windows (v4.12a) Content-description: Mail message body X-SPF-Result: relay.thorcom.net: domain of ntlworld.com designates 212.250.162.8 as permitted sender X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=no,RCVD_IN_SORBS=0.1 Subject: LF: Linear amplifiers Content-type: text/plain; charset=US-ASCII; format=flowed Content-transfer-encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com 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-Spam-Filtered: by PlusNet SpamCORE (v3.00) When I was compiling the book LF Today, I could not find a reliable published linear amplifier design. Several people have mentioned recently that they are using linear amps. What circuits do they use? How do they ensure they are linear? What efficiency do they get? Mike, G3XDV http://www.apersonalguide.co.uk/lf