Return-Path: Received: (qmail 7220 invoked from network); 12 Mar 2001 23:34:28 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 12 Mar 2001 23:34:28 -0000 Received: (qmail 28522 invoked from network); 12 Mar 2001 23:34:36 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 12 Mar 2001 23:34:36 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14cbl3-0000ET-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 12 Mar 2001 23:29:45 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from smtp7vepub.gte.net ([206.46.170.28] helo=smtp7ve.mailsrvcs.net) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14cbl2-0000EO-00 for rsgb_lf_group@blacksheep.org; Mon, 12 Mar 2001 23:29:44 +0000 Received: from ieee.org (client-151-200-117-29.bellatlantic.net [151.200.117.29]) by smtp7ve.mailsrvcs.net (8.9.1/8.9.1) with ESMTP id XAA11219395; Mon, 12 Mar 2001 23:36:41 GMT X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3AAD5C7D.EFD035FF@ieee.org> Date: Mon, 12 Mar 2001 18:32:14 -0500 From: "Andre' Kesteloot" X-Mailer: Mozilla 4.7 [en]C-CCK-MCD NSCPCD47 (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Active antennas at LF. References: <65AECDF1F89AD411900400508BFC869F9C03BE@pdw-mail-1.dera.gov.uk> <5.0.2.1.2.20010312211617.00a8e050@mail.pncl.co.uk> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Walter Blanchard wrote: > Why are they using double triode > E88CC? a cascode circuit, no doubt, as was used in TV tuners of yesteryear... And connect several in parallel for reliability. 73 Andre' N4ICK