Return-Path: Received: (qmail 5880 invoked from network); 1 Sep 2002 17:25:43 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 1 Sep 2002 17:25:43 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 5229 invoked from network); 1 Sep 2002 17:24:55 -0000 Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 1 Sep 2002 17:24:55 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 17lYRl-0007Aa-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 01 Sep 2002 18:23:37 +0100 Received: from [217.72.192.165] (helo=mailgate5.cinetic.de) by post.thorcom.com with esmtp (Exim 4.10) id 17lYRk-0007AL-00 for rsgb_lf_group@blacksheep.org; Sun, 01 Sep 2002 18:23:36 +0100 Received: from web.de (fmomail01.dlan.cinetic.de [172.20.1.45]) by mailgate5.cinetic.de (8.11.2/8.11.2/SuSE Linux 8.11.0-0.4) with SMTP id g81HMxX12463 for rsgb_lf_group@blacksheep.org; Sun, 1 Sep 2002 19:22:59 +0200 Date: Sun, 1 Sep 2002 19:22:59 +0200 Message-ID: <200209011722.g81HMxX12463@mailgate5.cinetic.de> MIME-Version: 1.0 Organization: http://freemail.web.de/ From: "Hans-Albrecht Haffa" To: rsgb_lf_group@blacksheep.org Subject: LF: Re:Skin-effect cores, from DK 8 ND Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=2.1 required=5.0tests=DEAR_SOMEBODY,SUPERLONG_LINE,MIME_EXCESSIVE_QPversion=2.31 X-Spam-Level: ** Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Dear Mike, I gave to Uwe two hints in German books to the topic skin effect. To find the eqations or curves for the thickness of the conductive layer as a functon of thickness (diameter) and frequency, You probably must search the library of the next engineering school or technical university. 73, Hans-Albrecht DK 8 ND rsgb_lf_group@blacksheep.org schrieb am 31.08.02 02:55:01: > Hey, not fair. I can't read German if that is what this is. > > Mike>WE0H > http://www.we0h.us/lf.html > > -----Original Message----- > From: majordom@post.thorcom.com [mailto:majordom@post.thorcom.com]On Behalf > Of Hans-Albrecht Haffa > Sent: Friday, August 30, 2002 3:10 AM > To: rsgb_lf_group@blacksheep.org > Subject: LF: Skin-effect cores, from DK 8 ND > > rsgb_lf_group@blacksheep.org schrieb am 29.08.02 22:49:59: > > Hans-Albrecht Haffa schrieb: > > > > > > > > - Look to Curves explaning the skin effect, that means that diameter or > > > thickness of the copper is restricted, depending on the frequency used. > > > > > Hi Hans, > > > > where can I look up those curves ? > > > > regards > > > > Uwe/dj8wx > > > Göppingen, 30. 08.2002 > > Lieber Uwe, hier also meine Qellen: > > - Eine Seite aus dem Repetitorium in "Siemens Compüonents 22 ( 1984) Heft 5 > - Fritz Vilbig: Lehrbuch der Hochfrequenztechnik, Vierte Auflage, Bd. 1, > Seite 149-150, Akademische Verlagsgesellschaft, Leipzig 1944. > > Du mußt also wohl oder übel in einer wissenschaftlichen Bibliothek in den > Grundlagenwerken der Elektrotechnik und HF-Technik wühlen. > > 55, > Hans-Albrecht > ____________________________________________________________________________ > __ > Jetzt testen fur 1 Euro! Ihr All-in-one-Paket! > https://digitaledienste.web.de/Club/formular/?mc=021106 > > > > ______________________________________________________________________________ Den Komfort von WEB.DE FreeMail nutzen, aber die alten E-Mail-Adressen nicht aufgeben? Kein Problem: http://freemail.web.de/?mc=021128