Return-Path: <owner-rsgb_lf_group@blacksheep.org> X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: INFN-TO: mailn 1233; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v2D0N3Sf000903 for <sq5bpf@lipkowski.org>; Mon, 13 Mar 2017 01:23:04 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cnDdn-0004ws-NS for rs_out_1@blacksheep.org; Mon, 13 Mar 2017 00:15:11 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cnDdn-0004wj-9x for rsgb_lf_group@blacksheep.org; Mon, 13 Mar 2017 00:15:11 +0000 Received: from simone.ucs.mun.ca ([134.153.232.76]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from <jcraig@mun.ca>) id 1cnDdi-0003AP-84 for rsgb_lf_group@blacksheep.org; Mon, 13 Mar 2017 00:15:10 +0000 Received: from plato.ucs.mun.ca (plato.ucs.mun.ca [134.153.232.153]) by simone.ucs.mun.ca (8.13.8/8.13.8) with ESMTP id v2D0EwcE011109 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for <rsgb_lf_group@blacksheep.org>; Sun, 12 Mar 2017 21:45:00 -0230 Date: Sun, 12 Mar 2017 21:44:58 -0230 (NDT) From: jcraig@mun.ca X-X-Sender: jcraig@plato.ucs.mun.ca To: rsgb_lf_group@blacksheep.org In-Reply-To: <CANi3vvvXeWO37C53Rz8Nywp0BTHVK0Z2rmc_NNS713FFT=eh4w@mail.gmail.com> Message-ID: <Pine.LNX.4.64.1703122131430.28757@plato.ucs.mun.ca> References: <15a98cc579c-d3b-de27@webprd-a58.mail.aol.com> <08c5eae2-8c19-da4d-f5b9-30b83712932f@psk31.plus.com> <58BAEA1D.5050802@posteo.de> <58BB4FA5.4080601@posteo.de> <553e8ee3-01a4-5840-0353-e82b320b1751@psk31.plus.com> <58BC3339.6060301@posteo.de> <58BC8101.8040206@posteo.de> <58BF3619.8030704@posteo.de> <alpine.DEB.2.11.1703081930560.642@mailn.lipkowski.org> <6d35e8fc-fffc-1d33-250b-5c8dfd1d8f06@abelian.org> <Pine.LNX.4.64.1703081729080.8148@plato.ucs.mun.ca> <58C13456.5040904@posteo.de> <Pine.LNX.4.64.1703101443310.19419@plato.ucs.mun.ca> <58C54163.5000509@posteo.de> <db45d755-43a2-e0fb-25c4-80f8f2e190ab@tele2.se> <CANi3vvvXeWO37C53Rz8Nywp0BTHVK0Z2rmc_NNS713FFT=eh4w@mail.gmail.com> MIME-Version: 1.0 X-Scan-Signature: 66d07794ca19cd68f7d6cc289cd4ac18 Subject: Re: LF: VLF in NA, PVC coil bodies/VLF converter Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed 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-Scanned-By: MIMEDefang 2.75 Status: RO X-Status: X-Keywords: X-UID: 10885 Hi Stefan, Pete and Johan, Some lovely coil forms! All that is needed is the wire. 0.4mm is available here in 30m or 75 kg spools. Thanks for the encouragement. I'll keep plugging away in the shack Johan, I'd like to build your FB VLF converter iand use a 10 MHz LO. L1 C5 and C6 and L2 were scaled for 10 from 4 MHz but a T1 core is not handy. Is 5 mH per winding satisfactory? Antipodes quest on LF is off till the far tower is re-erected. At the moment using the small RL (-7dB). 73 Joe VO1NA On Sun, 12 Mar 2017, M0FMT wrote: > Looks everything IS bigger in Sweden Johan ha ha ha! Nice one. > > Pete M0FMT > > On Sun, Mar 12, 2017 at 1:19 PM, Johan Bodin <jhbodin@tele2.se> wrote: > >> Or this, 72m tall, 27.5m diameter: >> >> http://a-ripellino.se/z/wp-content/uploads/2014/01/a-ripelli >> no_ackumulatortank_vy01.jpg :-D >> >> 73 de Johan SM6LKM >> >> >> >> DK7FC wrote: >> >>> BTW if you want to radiate a somewhat stronger signal i can recommend >>> this coil body: https://dl.dropboxusercontent. >>> com/u/19882028/VLF/20170312_130638.jpg :-) >>> >>> 73, Stefan >>> >> >> >> >