Return-Path: Received: from mtain-mh09.r1000.mx.aol.com (mtain-mh09.r1000.mx.aol.com [172.29.96.221]) by air-db08.mail.aol.com (v129.4) with ESMTP id MAILINDB082-86224c641764139; Thu, 12 Aug 2010 11:46:44 -0400 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mh09.r1000.mx.aol.com (Internet Inbound) with ESMTP id 214913800040F; Thu, 12 Aug 2010 11:46:42 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1OjZyQ-0008VX-Ea for rs_out_1@blacksheep.org; Thu, 12 Aug 2010 16:45:42 +0100 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1OjZyP-0008VO-JO for rsgb_lf_group@blacksheep.org; Thu, 12 Aug 2010 16:45:41 +0100 Received: from qmta09.westchester.pa.mail.comcast.net ([76.96.62.96]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1OjZyK-0001sq-JL for rsgb_lf_group@blacksheep.org; Thu, 12 Aug 2010 16:45:41 +0100 Received: from omta20.westchester.pa.mail.comcast.net ([76.96.62.71]) by qmta09.westchester.pa.mail.comcast.net with comcast id tPN31e0031YDfWL59TlVuS; Thu, 12 Aug 2010 15:45:29 +0000 Received: from JAYDELL ([76.23.233.102]) by omta20.westchester.pa.mail.comcast.net with comcast id tTlU1e00p2DDHkk3gTlV4i; Thu, 12 Aug 2010 15:45:29 +0000 Message-ID: <001e01cb3a35$66d2cd80$8d01a8c0@JAYDELL> From: To: References: , Date: Thu, 12 Aug 2010 11:45:33 -0400 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Spam-Score: 0.6 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55 Subject: Re: LF: T200-2 toroid cores Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01CB3A13.DF74E240" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_40_50,HTML_MESSAGE, NO_REAL_NAME 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: 3039ac1d60dd4c6417620e5d X-AOL-IP: 193.82.116.20 X-AOL-SPF: domain : blacksheep.org SPF : none ------=_NextPart_000_001A_01CB3A13.DF74E240 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Rik T200-2 should be fine at 400 - 500 W. Jay ----- Original Message ----- From: Rik Strobbe To: rsgb_lf_group@blacksheep.org Sent: Thursday, August 12, 2010 11:33 AM Subject: RE: LF: T200-2 toroid cores Warren, thanks for the hint. I just had a look and Jay actually uses T225A-2 toroids. The "A" means almost double height (and thus almost double cross sectional area). But Jay states that "Both filters have been tested to power levels in excess of 1000 watts and should be capable of handling significantly more power.". So I assume that the T200-2 toroids will be OK for the 400-500W power level I have in mind. 73, Rik ON7YD - OR7T ------------------------------------------------------------------------------ Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Warren Ziegler [wd2xgj@gmail.com] Verzonden: donderdag 12 augustus 2010 16:56 Aan: rsgb_lf_group@blacksheep.org Onderwerp: Re: LF: T200-2 toroid cores Rik, See Jay's web page, he uses T225-2 cores at the kW level for LPF: http://www.w1vd.com/LPF.html -- 73 Warren K2ORS WD2XGJ WD2XSH/23 WE2XEB/2 WE2XGR/1 On Thu, Aug 12, 2010 at 9:27 AM, Rik Strobbe wrote: Dear all, does anyone have experience with T200-2 cores (amidon) for 500kHz lowpass filters ? Up to what power are they suitable ? 73, Rik ON7YD - OR7T ------=_NextPart_000_001A_01CB3A13.DF74E240 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Rik
 
T200-2 should be fine at 400 - 500 W.=
 
Jay
 
----- Original Message -----
From:=20 Rik Strobbe
Sent: Thursday, August 12, 20= 10 11:33=20 AM
Subject: RE: LF: T200-2 toroi= d=20 cores

Warren,
 
thanks for the hint.
I just had a look and Jay actually= uses T225A-2=20 toroids. The "A" means almost double height (and thus almost double= cross=20 sectional area).
But Jay states that "Both=20 filters have been tested to power levels in excess of 1000 watts and= should be=20 capable of handling significantly more power.".
So I assume that the T200-2 toroids= will=20 be OK for the 400-500W power level I have in mind.<= /DIV>
 
73, Rik  ON7YD - OR7T
&= nbsp;
Van:=20 owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.o= rg] namens=20 Warren Ziegler [wd2xgj@gmail.com]
Verzonden: donderdag 12= augustus=20 2010 16:56
Aan: rsgb_lf_group@blacksheep.org
Onderwe= rp:=20 Re: LF: T200-2 toroid cores

Rik,

  See Jay's web page, he uses T225-2 cores at= the kW=20 level for LPF:
http://www.w1vd.com/LPF.html

--
73 Warren=20 K2ORS
                WD2= XGJ=20
               =20 WD2XSH/23
               = =20 WE2XEB/2
               = =20 WE2XGR/1


On Thu, Aug 12, 2010 at 9:27 AM, Rik Strobb= e <Rik.Strobbe@fys.kuleuven.be>=20 wrote:
Dear= =20 all,

does anyone have experience with T200-2 cores (amidon)= for=20 500kHz lowpass filters ?
Up to what power are they suitable ?
73,=20 Rik  ON7YD - OR7T




 
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