X-GM-THRID: 1242111294070225614 X-Gmail-Labels: rsgb lf Delivered-To: daveyxm@gmail.com Received: by 10.78.172.11 with SMTP id u11cs239566hue; Mon, 16 Jul 2007 01:02:53 -0700 (PDT) Received: by 10.86.57.9 with SMTP id f9mr3383910fga.1184572972845; Mon, 16 Jul 2007 01:02:52 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id 35si22526196nfu.2007.07.16.01.02.48; Mon, 16 Jul 2007 01:02:52 -0700 (PDT) Received-SPF: neutral (google.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1IALUs-00040m-Tx for rs_out_1@blacksheep.org; Mon, 16 Jul 2007 08:59:58 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1IALUs-00040d-Au for rsgb_lf_group@blacksheep.org; Mon, 16 Jul 2007 08:59:58 +0100 Received: from pne-smtpout1-sn1.fre.skanova.net ([81.228.11.98]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1IALUr-0007Uv-9d for rsgb_lf_group@blacksheep.org; Mon, 16 Jul 2007 08:59:58 +0100 Received: from [127.0.0.1] (62.20.250.132) by pne-smtpout1-sn1.fre.skanova.net (7.2.076.2) (authenticated as u33233109) id 46758F1900620F47 for rsgb_lf_group@blacksheep.org; Mon, 16 Jul 2007 09:59:51 +0200 Message-ID: <469B2578.5020502@telia.com> Date: Mon, 16 Jul 2007 09:59:52 +0200 From: "Johan H. Bodin" User-Agent: Thunderbird 2.0.0.4 (Windows/20070604) MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: In-Reply-To: X-Karma: -1000: uceprotect.blacklist: if-bad(0) => return-bad(1.0) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: 500 Beacons 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=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 Status: O X-Status: X-Keywords: X-UID: 3036 Hi Colin, > I am about to try an NE602 mixer circuit. That chip is not worth wasting any time on. There are much better, yet simple, alternatives that can handle huge signals without problems. Example: http://www.xs4all.nl/~martein/pa3ake/hmode/index.html With suitable transformers, these chips will work UFB on LF/MF. Considering the high level capabilities of these mixers, make sure that you wear adequate eye protection (welding goggles) before starting Argo :-) 73 Johan SM6LKM