X-GM-THRID: 1198033095344310417
X-Gmail-Labels: rsgb lf
X-Gmail-Received: 7fd3c96c3b4e140c785285d791ef6e9d323de08c
Delivered-To: daveyxm@gmail.com
Received: by 10.54.70.14 with SMTP id s14cs13649wra;
        Thu, 16 Mar 2006 10:23:13 -0800 (PST)
Received: by 10.65.219.6 with SMTP id w6mr114494qbq;
        Thu, 16 Mar 2006 10:23:13 -0800 (PST)
Return-Path: <owner-rsgb_lf_group@blacksheep.org>
Received: from post.thorcom.com (post.thorcom.com [193.82.116.20])
        by mx.gmail.com with ESMTP id e10si579537qbe.2006.03.16.10.23.11;
        Thu, 16 Mar 2006 10:23:13 -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 1FJx4y-0004Ra-TR
	for rs_out_1@blacksheep.org; Thu, 16 Mar 2006 18:20:08 +0000
Received: from [193.82.116.32] (helo=relay1.thorcom.net)
	by post.thorcom.com with esmtp (Exim 4.14)
	id 1FJx4y-0004RR-FO
	for rsgb_lf_group@blacksheep.org; Thu, 16 Mar 2006 18:20:08 +0000
Received: from smtp1.versatel.nl ([62.58.50.88] helo=smtp3.versatel.nl)
	by relay1.thorcom.net with esmtp (Exim 4.51)
	id 1FJyel-0008Cn-1L
	for rsgb_lf_group@blacksheep.org; Thu, 16 Mar 2006 20:01:27 +0000
Received: (qmail 32482 invoked by uid 0); 16 Mar 2006 18:19:44 -0000
Received: from unknown (HELO ibm) ([62.59.190.92])
          (envelope-sender <knaap159@zonnet.nl>)
          by smtp1.versatel.nl (qmail-ldap-1.03) with SMTP
          for < >; 16 Mar 2006 18:19:44 -0000
Message-ID: <002b01c64925$19fbfc80$2102000a@ibm>
From: "Dick" <knaap159@zonnet.nl>
To: <rsgb_lf_group@blacksheep.org>
References: <002e01c64648$881b06a0$6401a8c0@JAYTERMINAL> <Pine.LNX.4.60.0603160739400.17034@comcon2.org> <000401c648eb$8bba61c0$2102000a@ibm> <000201c64923$5d16b4d0$37e8fc3e@your4105e587b6>
Date: Thu, 16 Mar 2006 19:11:02 +0100
MIME-Version: 1.0
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 5.00.2615.200
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200
X-Spam-Score: 0.6 (/)
X-Spam-Report: autolearn=disabled,FORGED_RCVD_HELO=0.05,FROM_ENDS_IN_NUMS=0.516
Subject: LF: clamping TV-cores
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com
X-Spam-Level: 
X-Spam-Status: No, hits=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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: 7039

The thing Mal, G3KEV, wrote reminds me in how I had troubles
to 'connect' two TV-U-cores together.
Any suggestions how to stick them together in a good way?
Even the slightest variation in pressure seems to change inductance
in a rather large way.
That's also one of the reasons I am searching for a toroid core.........

It seems to be impossible to find a source for just one or two 3C90 cores
here in Holland or Germany.......
Luckely there might be a solution on its way from the UK?

Dick, PA4VHF


just to inform you: I'm planning to build a new (1kW) 136kHz station,
including
'portable' antenna system,
that I might take with me to LX later this year..........