Return-Path: Received: (qmail 5584 invoked from network); 22 Feb 1999 11:36:39 -0000 Received: from magnet.plus.net.uk (HELO magnet.force9.net) (195.166.128.26) by medusa.plus.net.uk with SMTP; 22 Feb 1999 11:36:39 -0000 Received: (qmail 8322 invoked from network); 22 Feb 1999 11:37:32 -0000 Received: from post.thorcom.com (194.75.130.70) by magnet.plus.net.uk with SMTP; 22 Feb 1999 11:37:32 -0000 Received: from troy.blacksheep.org ([194.75.183.50] ident=root) by post.thorcom.com with esmtp (Exim 2.04 #3) id 10Etgo-0005a3-00; Mon, 22 Feb 1999 11:38:18 +0000 Received: (from root@localhost) by troy.blacksheep.org (8.6.12/8.6.12) id LAA21291 for rsgb_lf_group-outgoing; Mon, 22 Feb 1999 11:34:00 GMT Received: from post.thorcom.com (root@post.unica.co.uk [194.75.183.70]) by troy.blacksheep.org (8.6.12/8.6.12) with ESMTP id KAA13894 for ; Mon, 22 Feb 1999 10:01:41 GMT X-Priority: 3 X-MSMail-Priority: Normal Received: from mserv1a.u-net.net ([195.102.240.34]) by post.thorcom.com with smtp (Exim 2.04 #3) id 10EsEW-0001D4-00 for rsgb_lf_group@blacksheep.org; Mon, 22 Feb 1999 10:05:01 +0000 Received: from rsgb.u-net.com (rsgb.org.uk) [195.102.80.225] by mserv1a.u-net.net with smtp (Exim 1.82 #2) id 10EsB8-0002rJ-00; Mon, 22 Feb 1999 10:01:30 +0000 Received: from miked.rsgbhq [192.168.2.30] by rsgb.org.uk [192.168.2.132] with SMTP (MDaemon.v2.7.SP3.R) for ; Mon, 22 Feb 1999 09:45:18 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 From: "Mike Dennison" Organization: Radio Society of Great Britain To: rsgb_lf_group@blacksheep.org Date: Mon, 22 Feb 1999 09:50:21 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 8bit Subject: LF: Linear amps Priority: normal X-Mailer: Pegasus Mail for Win32 (v3.01d) X-MDaemon-Deliver-To: rsgb_lf_group@blacksheep.org Message-ID: Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org Hope this gets through - my last message to the group failed. On the subject of PSK31 and the need for linear amps, will a simple audio amp do the job? The BK Electronics amps should be linear over its intended range. Could it be persuaded to retain its linearity at 136kHz? Mike, G3XDV (IO91VT) http://www.dennison.demon.co.uk/activity.htm