Return-Path: Received: (qmail 25368 invoked from network); 3 Jan 2001 18:16:26 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by extortion.plus.net with SMTP; 3 Jan 2001 18:16:26 -0000 Received: (qmail 27346 invoked from network); 3 Jan 2001 18:19:02 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 3 Jan 2001 18:19:02 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14DsP0-0003A9-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 03 Jan 2001 18:12:46 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from d12lmsgate-3.de.ibm.com ([195.212.91.201]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14DsOz-0003A3-00 for rsgb_lf_group@blacksheep.org; Wed, 03 Jan 2001 18:12:45 +0000 Received: from d12relay02.de.ibm.com (d12relay02.de.ibm.com [9.165.215.23]) by d12lmsgate-3.de.ibm.com (1.0.0) with ESMTP id TAA198934 for ; Wed, 3 Jan 2001 19:12:06 +0100 Received: from usa.net (ss5.bld.socks.ibm.com [9.14.4.70]) by d12relay02.de.ibm.com (8.8.8m3/NCO v4.95) with ESMTP id TAA128190 for ; Wed, 3 Jan 2001 19:12:04 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <3A536B55.F0FEE103@usa.net> Date: Wed, 03 Jan 2001 19:11:33 +0100 From: "Alberto di Bene" Organization: Undisclosed X-Mailer: Mozilla 4.76 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org Subject: Re: LF: Gyrators References: <20215890.978543215896.JavaMail.imail@bernie.excite.com> 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: john sexton wrote: > Hi Alberto > Stokes original article was re-printed in the old LF Experimenters Source > Book, together with another explaining the theory. > I built the original circuit. It is very simple and lacks most of the > features required in a decent receiver. > [snip] Hi John, thanks for your answer. At this point I can also thank you for having saved me a few hours of works bulding it ! As a matter of fact, at 137 kHz the inductance values aren't so big to make it impractical to wind them. At 9 kHz things are a bit different... 73, Alberto I2PHD