Return-Path: Received: from rly-da03.mx.aol.com (rly-da03.mail.aol.com [172.19.129.77]) by air-da02.mail.aol.com (v121_r4.4) with ESMTP id MAILINDA022-a5a4924a3f34f; Wed, 19 Nov 2008 18:40:59 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by rly-da03.mx.aol.com (v121_r4.4) with ESMTP id MAILRELAYINDA032-a5a4924a3f34f; Wed, 19 Nov 2008 18:40:38 -0500 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1L2wei-0008Ff-PR for rs_out_1@blacksheep.org; Wed, 19 Nov 2008 23:40:20 +0000 Received: from [83.244.159.144] (helo=relay3.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1L2wei-0008FW-04 for rsgb_lf_group@blacksheep.org; Wed, 19 Nov 2008 23:40:20 +0000 Received: from smtp802.mail.ird.yahoo.com ([217.146.188.62]) by relay3.thorcom.net with smtp (Exim 4.63) (envelope-from ) id 1L2weg-0000Wt-9j for rsgb_lf_group@blacksheep.org; Wed, 19 Nov 2008 23:40:19 +0000 Received: (qmail 77398 invoked from network); 19 Nov 2008 23:40:11 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=btopenworld.com; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:In-Reply-To:Importance; b=s/kMOrr33Rxtr8ImZEa1mG2sY76ACCYsSJ/cgBSRzxLxTUkqkn3EROenR8WQhfrjlJUjflD6y5qihgpyZeSwBwkz39z+wp1ef/xt5VHdoLC6BySZrzhZ3iDqSFsbVlITy3TQSEJDrltPpsVmo9C2tn2F3Xu2EVBMDArckn+LMWE= ; Received: from unknown (HELO aquarids) (ganymede444@81.153.225.4 with login) by smtp802.mail.ird.yahoo.com with SMTP; 19 Nov 2008 23:40:10 -0000 X-YMail-OSG: 0oSwXsQVM1kzjCXhAlEzHiEga.EcuWR9NbIKleL2Um4Q.KDYkgYgLFpwcZBQBz_WDTCLeLDH4OG3KfFyHHakk8i3ilpyPl.bGjZNY2_9xDyLOWBtm3qKaZf8p8k_P6jot0ZG6Kfo4U_KGLWt8CM_WuyObvoFWCBoQERfdu9amJJ4j5y168BxTcMqjVs- X-Yahoo-Newman-Property: ymail-3 From: "Dave G3WCB" To: Date: Wed, 19 Nov 2008 23:41:41 -0000 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1914 In-Reply-To: Importance: Normal DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: LF: RE: RE: RE: 3C85/90 Toroids Content-Type: multipart/alternative; boundary="----=_NextPart_000_0041_01C94AA0.5F4E9CA0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.2 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_60_70, HTML_FONTCOLOR_BLUE,HTML_FONTCOLOR_UNKNOWN,HTML_MESSAGE 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-IP: 193.82.116.20 ------=_NextPart_000_0041_01C94AA0.5F4E9CA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageYes! Sycom is the name of the outfit. Well done, Mike. He also sells IRF540 100V 28A mosfets. Perfect for that 137 or 500 kHz PA... 73 Dave G3WCB -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Michael Probert Sent: 19 November 2008 22:52 To: rsgb_lf_group@blacksheep.org Subject: LF: RE: RE: 3C85/90 Toroids T130-2 and T200-2 are both available from www.sycomcomp.co.uk 73 Mike GW4HXO ---------------------------------------------------------------------------- -- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Dave G3WCB Sent: 19 November 2008 22:11 To: rsgb_lf_group@blacksheep.org Subject: LF: RE: 3C85/90 Toroids As well as the famous Phillips 3C85 material, I find that Micrometals toroids type T130-2 (1.3 inch) and T200-2 (2-inch) toroids work quite well at 137 kHz. I bought some from a stall at Kempton Park rally, and I'll post the name of the vendor here just as soon as I can remember who it was! You can also use air-cored solenoid windings for these inductors, but if you use wire that is too thin, they will also heat up as the circulating currents within the LPF can be quite high. Look out for them at rallies if you get the chance. The T130-2 and T200-2 toroids are coloured red with one grey cheek. Good luck and 73 Dave G3WCB IO91RM -----Original Message----- From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Lee Hudson Sent: 19 November 2008 18:51 To: rsgb_lf_group@blacksheep.org Subject: LF: 3C85/90 Toroids Hi, Any suggestions for suppliers of Toroids made from 3C85/90 material rather than stripping down old SMPS? 73, Lee M0LMH __________ NOD32 3625 (20081119) Information __________ This message was checked by NOD32 antivirus system. part000.txt - file is not an archive http://www.eset.com ------=_NextPart_000_0041_01C94AA0.5F4E9CA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Yes!=20 Sycom is the name of the outfit. Well done, Mike.
 
He=20 also sells IRF540 100V 28A mosfets. Perfect for that 137 or 500 kHz=20 PA...
 
73=20 Dave G3WCB
-----Original Message-----
From:=20 owner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Michael=20 Probert
Sent: 19 November 2008 22:52
To:=20 rsgb_lf_group@blacksheep.org
Subject: LF: RE: RE: 3C85/90=20 Toroids

T130-2 and T200-2 ar= e=20 both available from www.sycomco= mp.co.uk=20

 

73=

 

Mike=20 GW4HXO

 

From: ow= ner-rsgb_lf_group@blacksheep.org=20 [mailto:owner-r= sgb_lf_group@blacksheep.org]=20 On Behalf Of Dave=20 G3WCB
Sent: 19 November= 2008=20 22:11
To: rsgb_lf_group@blacksheep.org
Subject: LF: RE: 3C85/90=20 Toroids

 

 

As well as the famou= s=20 Phillips 3C85 material, I find that Micrometals toroids type  T1= 30-2=20 (1.3 inch) and T200-2 (2-inch) toroids work quite well at 137 kHz. I bough= t=20 some from a stall at = Kempton Park rally, and I'll post the name of=20 the vendor here just as soon as I can remember who it was! You can also us= e=20 air-cored solenoid windings for these inductors, but if you use wire that=20= is=20 too thin, they will also heat up as the circulating currents within the LP= F=20 can be quite high.

 

Look out for them at= =20 rallies if you get the chance. The T130-2 and T200-2 toroids are coloured=20= red=20 with one grey cheek.

 

Good luck and=20 73

 

 

Dave G3WCB=20 IO91RM

-----Origi= nal=20 Message-----
From:=20 owner-rsgb_= lf_group@blacksheep.org=20 [mailto:owner-rsgb_lf_group@blacksheep.org]On Behalf Of Lee Hudson
Sent: 19 November 2008=20 18:51
To: rsgb_lf_group@blacksheep.org
Subject: LF: 3C85/90=20 Toroids

Hi,

 

Any suggestions for suppliers of=20 Toroids made from 3C85/90 material rather than stripping down old=20 SMPS?

 

73,

Lee=20

M0LMH

 



__________ NOD32 3625 (20081119) Information=20 __________

This message was checked by NOD32 antivirus=20 system.
part000.txt - file is not an archive

http://www.eset.com

------=_NextPart_000_0041_01C94AA0.5F4E9CA0--