Return-Path: Received: from mtain-me05.r1000.mx.aol.com (mtain-me05.r1000.mx.aol.com [172.29.96.141]) by air-dd08.mail.aol.com (v129.4) with ESMTP id MAILINDD084-86b04c0e42bd1e3; Tue, 08 Jun 2010 09:16:45 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-me05.r1000.mx.aol.com (Internet Inbound) with ESMTP id BC0253800014A; Tue, 8 Jun 2010 09:16:41 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OLye8-00056S-MC for rs_out_1@blacksheep.org; Tue, 08 Jun 2010 14:15:12 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OLye8-00056J-9N for rsgb_lf_group@blacksheep.org; Tue, 08 Jun 2010 14:15:12 +0100 Received: from out1.ip07ir2.opaltelecom.net ([62.24.128.243]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OLye6-0001RY-7K for rsgb_lf_group@blacksheep.org; Tue, 08 Jun 2010 14:15:12 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AiQGAKrfDUxOk8/d/2dsb2JhbACPAAOPQGMOvRGCV4I/BA X-IronPort-AV: E=Sophos;i="4.53,384,1272841200"; d="scan'208,217";a="450024588" Received: from unknown (HELO xphd97xgq27nyf) ([78.147.207.221]) by out1.ip07ir2.opaltelecom.net with SMTP; 08 Jun 2010 14:15:04 +0100 Message-ID: <002001cb070c$99d44b20$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: "rsgb" Date: Tue, 8 Jun 2010 14:15:00 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 1.2 (+) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,SUBJ_ALL_CAPS=1.166 Subject: LF: COIL WINDING THOUGHT Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01CB0714.FB68F090" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.4 required=5.0 tests=HTML_30_40,HTML_MESSAGE, LINES_OF_YELLING,SUBJ_ALL_CAPS 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: 3039ac1d608d4c0e42b91e44 X-AOL-IP: 193.82.116.20 ------=_NextPart_000_001D_01CB0714.FB68F090 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All vlf men Instead of winding miles of single strand insulated wire to achive the= required inductance, use instead insulated multi strand wire and seri= es the strands, normally the individual strands have coloured insulati= on and convenient to connect in series. also gather up all the ferrite cores you can find put into a suitable conta= iner and insert into coil. The above idea might save some coil winding time. another thouight while I am composing Litz wire. Get hold of some old Decca coils ( I have a couple) find the beginning= and end and do the same as above, this however is more difficult alth= ough individually insulated they are all the same colour, but with a= meter to identify each strand it can be done de mal/g3kev ------=_NextPart_000_001D_01CB0714.FB68F090 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

All vlf men

Instead of winding miles of single st= rand insulated=20 wire to achive the required inductance, use instead insulated multi st= rand wire=20 and series the strands, normally the individual strands have coloured= insulation=20 and convenient to connect in series.

also

gather up all the ferrite cores you= can find put=20 into a suitable container and insert into coil.

The above idea might save some coil= winding=20 time.

another thouight while I am composing=

Litz wire.

Get hold of some old Decca coils ( I= have a couple)=20 find the beginning and end and do the same as above, this however is= more=20 difficult although individually insulated they are all the same colour= , but with=20 a meter to identify each strand it can be done

de mal/g3kev

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