Return-Path: Received: from mtain-mg12.r1000.mx.aol.com (mtain-mg12.r1000.mx.aol.com [172.29.96.212]) by air-ma02.mail.aol.com (v129.4) with ESMTP id MAILINMA022-b4f44c0e4cbc33e; Tue, 08 Jun 2010 09:59:24 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mg12.r1000.mx.aol.com (Internet Inbound) with ESMTP id E0342380000AB; Tue, 8 Jun 2010 09:59:21 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OLzJs-0005oS-W3 for rs_out_1@blacksheep.org; Tue, 08 Jun 2010 14:58:20 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OLzJs-0005oJ-H9 for rsgb_lf_group@blacksheep.org; Tue, 08 Jun 2010 14:58:20 +0100 Received: from v-smtp-auth-relay-5.gradwell.net ([79.135.125.99]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OLzJq-0002aH-LF for rsgb_lf_group@blacksheep.org; Tue, 08 Jun 2010 14:58:20 +0100 Received: from host81-149-112-44.in-addr.btopenworld.com ([81.149.112.44] helo=hugh country=GB ident=ashford) by v-smtp-auth-relay-5.gradwell.net with esmtpa (Gradwell gwh-smtpd 1.290) id 4c0e4c60.b99.7 for rsgb_lf_group@blacksheep.org; Tue, 8 Jun 2010 14:57:52 +0100 (envelope-sender ) Message-ID: <8503823EEAF14A7DAD78F7A61BF0210E@Hugh> From: "Hugh_m0wye" To: References: <003201cb070d$9e75a330$0401a8c0@xphd97xgq27nyf> Date: Tue, 8 Jun 2010 14:57:47 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5931 X-Spam-Score: 3.4 (+++) X-Spam-Report: autolearn=disabled,FORGED_MUA_OUTLOOK=3.36 Subject: LF: Re: COIL WINDING THOUGHT Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original 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=1.6 required=5.0 tests=FORGED_MUA_OUTLOOK 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-aol-global-disposition: G x-aol-sid: 3039ac1d60d44c0e4cb90ac7 X-AOL-IP: 193.82.116.20 This method of winding increases the interwinding capacitance, and also lowers the breakdown voltage of the overall coil, because adjascent turns have a higher potential between them. When I wound my loading coil, I deliberately used single layer winding to maximise the voltage handling. Hugh M0WYE ----- Original Message ----- From: "mal hamilton" To: "rsgb" Sent: Tuesday, June 08, 2010 2:22 PM Subject: LF: COIL WINDING THOUGHT A reel of 6 core insulated strands 200 metres long becomes 1200 metres a good reduction in winding time. g3kev