Return-Path: Received: (qmail 11166 invoked from network); 31 Jan 2001 00:04:57 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 31 Jan 2001 00:04:57 -0000 Received: (qmail 11451 invoked from network); 30 Jan 2001 23:59:04 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 30 Jan 2001 23:59:04 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14NkZF-0000HG-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 30 Jan 2001 23:52:09 +0000 Received: from fep03.swip.net ([130.244.199.131] helo=fep03-svc.swip.net) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14NkZE-0000HB-00 for rsgb_lf_group@blacksheep.org; Tue, 30 Jan 2001 23:52:08 +0000 Received: from oemcomputer ([212.151.96.173]) by fep03-svc.swip.net (InterMail vM.5.01.01.01 201-252-104) with SMTP id <20010130235118.EEAC27202.fep03-svc.swip.net@oemcomputer> for ; Wed, 31 Jan 2001 00:51:18 +0100 Message-ID: <003201c08b17$9f7dbbe0$ad6097d4@oemcomputer> From: "Johan Bodin" To: rsgb_lf_group@blacksheep.org Subject: LF: SV: 3C85 Material: Obsolete? Date: Wed, 31 Jan 2001 00:51:53 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hi, >Also, does anyone know a suitable alternative to those magical >3C85 cores having a diameter of 25; 42; and 58 mm? At 136 kHz, the material 3F3 is better than 3C85 for power transformation (lower core loss). As far as I know, 13, 25 and 36mm toroids are available as well as E-E cores in a number of sizes (for bobbins). I don't know about 42 and 58mm toroid sizes though... 73 Johan