Return-Path: Received: (qmail 62330 invoked from network); 13 Jan 2005 09:17:23 -0000 Received: from unknown (HELO ptb-spamcore02.plus.net) (192.168.71.3) by ptb-mailstore02.plus.net with SMTP; 13 Jan 2005 09:17:23 -0000 Received: from mailnull by ptb-spamcore02.plus.net with spamcore-l-b (Exim 4.32; FreeBSD) id 1Cp16X-0002vj-Ow for dave@picks.force9.co.uk; Thu, 13 Jan 2005 09:17:24 +0000 Received: from [192.168.67.1] (helo=ptb-mxcore01.plus.net) by ptb-spamcore02.plus.net with esmtp (Exim 4.32; FreeBSD) id 1Cp16X-0002vX-9o for dave@picks.force9.co.uk; Thu, 13 Jan 2005 09:17:21 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore01.plus.net with esmtp (Exim 4.30; FreeBSD) id 1Cp16V-000IKN-Rn for dave@picks.force9.co.uk; Thu, 13 Jan 2005 09:17:19 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Cp15T-0002F8-KE for rs_out_1@blacksheep.org; Thu, 13 Jan 2005 09:16:15 +0000 Received: from [193.82.116.30] (helo=relay.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Cp15T-0002Ez-8w for rsgb_lf_group@blacksheep.org; Thu, 13 Jan 2005 09:16:15 +0000 Received: from relay.sotline.ru ([80.89.139.226]) by relay.thorcom.net with esmtp (Exim 4.43) id 1Cp15P-0001ZS-97 for rsgb_lf_group@blacksheep.org; Thu, 13 Jan 2005 09:16:15 +0000 Received: from astral.omskcity.com (mxs.sotline.ru [80.89.139.227]) by relay.sotline.ru (8.12.8p2/8.12.8) with ESMTP id j0D9G4ki031216 for ; Thu, 13 Jan 2005 15:16:04 +0600 (OMST) (envelope-from fitec@omskcity.com) Received: from noname.nodomain.nowhere (host244.m04.dial.sotline.ru [81.176.51.244]) by astral.omskcity.com (8.x.x) with ESMTP id j0D9G0Y7018767 for ; Thu, 13 Jan 2005 15:16:01 +0600 (OS) Received: from localhost (fitec@localhost) by noname.nodomain.nowhere (8.8.5/8.8.5) with SMTP id PAA00291 for ; Thu, 13 Jan 2005 15:33:19 GMT X-Authentication-Warning: noname.nodomain.nowhere: fitec owned process doing -bs Date: Thu, 13 Jan 2005 15:33:18 +0000 (GMT) From: "Alexander S. Yurkov" To: rsgb_lf_group@blacksheep.org In-Reply-To: Message-ID: MIME-Version: 1.0 X-SPF-Result: relay.thorcom.net: domain of omskcity.com designates 80.89.139.226 as permitted sender X-Spam-Score: 0.1 (/) X-Spam-Report: autolearn=failed,FORGED_RCVD_HELO=0.05 Subject: Re: LF: Re: Coil Winding, de J. Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed 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) Content-transfer-encoding: 8bit On Thu, 13 Jan 2005, Alexander S. Yurkov wrote: > > Since optimum Q in an inductor with solid wire requires an air space between > > adjacent conductors equal to conductor diameter, would it make sense to wind > > a coil with two varnished conductors in parallel and have the conductors in > > tight contact? The idea of parallel conductors is to lower the Q, space the > > conductors, and make winding the coil easier. > > Though it is a good idea. May be I understand Your idea not right. Two (or more) wires connected in paralel on the ends can be used if wire is too thin to acive coil length of 1/2 of a coil diameter when step of wireing is twice of wire diameter. But anyway space betwin wires should be equal to wire diameter. Also it is posible to use an additional wire to get a appropriate space but then additional wire should be removed. If there is no space betwin wires then Q will decrease. Not too much but... 73 de RA9MB/Alex http://www.qsl.net/ra9mb