Return-Path: Received: (qmail 3132 invoked from network); 23 Apr 2003 13:37:38 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 23 Apr 2003 13:37:38 -0000 Received: (qmail 12858 invoked from network); 23 Apr 2003 13:37:41 -0000 X-MSMail-Priority: High Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 23 Apr 2003 13:37:41 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 198KNM-0006U4-Rp for rsgb_lf_group-outgoing@blacksheep.org; Wed, 23 Apr 2003 14:33:28 +0100 Received: from [212.1.130.143] (helo=smtp-1.visp.telinco.net) by post.thorcom.com with esmtp (Exim 4.14) id 198KNH-0006Tv-41 for rsgb_lf_group@blacksheep.org; Wed, 23 Apr 2003 14:33:23 +0100 Received: from [80.40.83.33] (helo=standalone) by smtp-1.visp.telinco.net with smtp (Exim 3.36 #1) id 198KNG-0001Yd-00 for rsgb_lf_group@blacksheep.org; Wed, 23 Apr 2003 14:33:22 +0100 Received: by localhost with Microsoft MAPI; Wed, 23 Apr 2003 14:32:44 +0100 Message-ID: <01C309A5.34411480.g4jnt@thersgb.net> From: "Andy talbot" To: "Rsgb_Lf_Group \(E-mail\)" Date: Wed, 23 Apr 2003 14:32:11 +0100 Importance: high X-Priority: 1 X-Mailer: Microsoft Internet E-mail/MAPI - 8.0.0.4211 MIME-Version: 1.0 Subject: LF: Amidon Cores (slightly diverging from topic) Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=2.0 required=5.0tests=X_PRIORITY_HIGHversion=2.53 X-Spam-Level: ** X-Spam-Checker-Version: SpamAssassin 2.53 (1.174.2.15-2003-03-30-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Does anyone know of a UK supplier of Amidon iron dust cores - they may be called American Cores & Electronics now, according to the Amidon web page. The web is not too helpful at finding a UK stockist though. I need a lot of them for a (work based) design with many parallel channels of filtering, and for various bureaucratic reasons to do with importation, need to get them from a UK supplier. btw. I've discovered the published Al values for these, particularly for the T2 material (2 - 30MHz) is some way out from that shown in the ARRL handbook. Measured discrepancies of 10% to 30% seem to be common, so every coil has to be wound and measured to get to spec. Andy G4JNT