X-GM-THRID: 1198011081201628835 X-Gmail-Labels: rsgb lf X-Gmail-Received: 50c71d00d2a51cd5c74ef736e9c386646d3787cb Delivered-To: daveyxm@gmail.com Received: by 10.54.70.14 with SMTP id s14cs9860wra; Thu, 16 Mar 2006 06:50:13 -0800 (PST) Received: by 10.64.21.10 with SMTP id 10mr1102334qbu; Thu, 16 Mar 2006 06:50:13 -0800 (PST) Return-Path: Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mx.gmail.com with ESMTP id e19si230652qbe.2006.03.16.06.50.11; Thu, 16 Mar 2006 06:50:13 -0800 (PST) Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1FJtkO-00035L-IE for rs_out_1@blacksheep.org; Thu, 16 Mar 2006 14:46:40 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1FJtkO-00035C-64 for rsgb_lf_group@blacksheep.org; Thu, 16 Mar 2006 14:46:40 +0000 Received: from rwcrmhc12.comcast.net ([204.127.192.82]) by relay1.thorcom.net with esmtp (Exim 4.51) id 1FJvK4-0005t9-99 for rsgb_lf_group@blacksheep.org; Thu, 16 Mar 2006 16:27:55 +0000 Received: from rmailcenter90.comcast.net ([204.127.197.190]) by comcast.net (rwcrmhc12) with SMTP id <20060316144613m1200jerite>; Thu, 16 Mar 2006 14:46:13 +0000 Received: from [24.91.21.104] by rmailcenter90.comcast.net; Thu, 16 Mar 2006 14:46:11 +0000 From: k2ors@comcast.net (Warren K2ORS/WD2XGJ) To: rsgb_lf_group@blacksheep.org, Cc: "james moritz" Date: Thu, 16 Mar 2006 14:46:11 +0000 Message-Id: <031620061446.932.44197A33000C2C1B000003A422068246930B97010D0A020E06979D0E03@comcast.net> X-Mailer: AT&T Message Center Version 1 (Aug 4 2005) X-Authenticated-Sender: bWFyeWphbmVib3lkQGNvbWNhc3QubmV0 X-Spam-Score: -1.0 (-) X-Spam-Report: autolearn=disabled,AWL=-1.021 Subject: Re: LF: RE: source for large 3C90 toroids wanted........ X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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 Status: O X-Status: X-Keywords: X-UID: 6005 Jim, Dick and the group, I looked at the Fair-Rite Mix 78, seems to have about 1/3 the loss at 100kHz compared to Mix 77, would large Mix 78 cores make a good high power transformer at 137? -- 73 Warren K2ORS/WD2XGJ FN42hi http://www.w4dex.com/wd2xgj.htm -------------- Original message ---------------------- From: "james moritz" > Dear Dick, LF Group, > > The Siemens N87 grade is a near-equivalent to 3C90. N27 and N67 are similar > also. N30 is a higher permeability material, not really intended for power > applications. Fair-Rite 78 grade is also very similar. > > Cheers, Jim Moritz > 73 de M0BMU > > -----Original Message----- > From: owner-rsgb_lf_group@blacksheep.org > [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Dick > Sent: 16 March 2006 11:20 > To: rsgb_lf_group@blacksheep.org > Subject: LF: source for large 3C90 toroids wanted........ > > Hello ....... > > I am looking for a source to buy 3C90 (or 3C85) toroids, 58mm diameter. > Up til now I can only find 'Spoerle' , but I have to buy at least 36 of > them............ > > Is there any other compagny that have these large cores available in lower > quantities?? > Preferable in Germany or the Netherlands. > > Maybe there is a alternative by using Epcos cores? Material N87?? or N30?? > Anyone?? > > 73 > > Dick , PA4VHF > > (I know about using TV-cores etc, but just wonder if there is a way to get > these nice ringcores) > > > > > >