X-GM-THRID: 1216511827920190333 X-Gmail-Labels: rsgb lf X-Gmail-Received: 0557a4d4d43d0aca470a4dfb34395a13cdf03570 Delivered-To: daveyxm@gmail.com Received: by 10.78.185.17 with SMTP id i17cs147171huf; Fri, 6 Oct 2006 10:34:46 -0700 (PDT) Received: by 10.67.89.5 with SMTP id r5mr3487316ugl; Fri, 06 Oct 2006 10:34:46 -0700 (PDT) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.google.com with ESMTP id 34si2104478uga.2006.10.06.10.34.45; Fri, 06 Oct 2006 10:34:46 -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 1GVtW0-0002Je-Ey for rs_out_1@blacksheep.org; Fri, 06 Oct 2006 18:29:40 +0100 Received: from [193.82.59.130] (helo=relay2.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1GVtVz-0002JV-TV for rsgb_lf_group@blacksheep.org; Fri, 06 Oct 2006 18:29:39 +0100 Received: from mk-smarthost-2.mail.uk.tiscali.com ([212.74.114.38]) by relay2.thorcom.net with esmtp (Exim 4.51) id 1GVtVu-0003lP-Vf for rsgb_lf_group@blacksheep.org; Fri, 06 Oct 2006 18:29:39 +0100 Received: from mk-smarthost-9.mail.uk.tiscali.com ([212.74.114.48]) by mk-smarthost-2.mail.uk.tiscali.com with ESMTP; 06 Oct 2006 18:29:27 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AQAAAAcuJkWMEAIHAgwHBh0 Received: from 88-106-105-44.dynamic.dsl.as9105.com ([88.106.105.44]:4836 helo=tcs01) by mk-smarthost-9.mail.uk.tiscali.com with smtp (Exim 4.30) id 1GVtUa-0005Nl-Gz for rsgb_lf_group@blacksheep.org; Fri, 06 Oct 2006 18:28:12 +0100 From: "Gary - G4WGT" To: Date: Fri, 6 Oct 2006 18:29:53 +0100 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 Importance: Normal In-Reply-To: <45266610.2030800@fh-amberg-weiden.de> X-Spam-Score: -0.6 (/) X-Spam-Report: autolearn=disabled,AWL=-0.598 Subject: LF: RE: LF/MF: Coil Forms Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit 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: 4210 Hi Tom & LF, The slotted discs on the first web page are very similar to my first attempt at basket weave coils for loading my trap dipole for receive when I first became interested in LF. I made the basket weave forms out of CD,s. I still have them in a box somewhere. Gary - G4WGT. -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Thomas K�lpin Sent: 06 October 2006 15:20 To: rsgb_lf_group@blacksheep.org Subject: LF: LF/MF: Coil Forms Hello group, just to whom it may concern: I happened to find a web site (sorry - only in German) offering coil form kits made from polyamid 6.6 with 30% glassfibers for basket coils and cylindrical air coils: http://www.roehrentechnik.de/html/flachspulen.html http://www.roehrentechnik.de/html/luftspulen.html They offer accessories like plug in pins, sockets and simple litz wire too, the prices seem to be quite reasonable (I don�t get any commission ;-)) For all of the coil forms you can find some graphs about L and Q versus number of turns, kind of wire and frequency. Up to now I have`n tested this source by myself, indeed. 73, Tom, DK1IS JN59WK www.qrz.com/callsign/dk1is