Return-Path: Received: (qmail 52277 invoked from network); 20 Jan 2004 22:26:33 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore01.plus.net with SMTP; 20 Jan 2004 22:26:33 -0000 Received: (qmail 58112 invoked from network); 20 Jan 2004 22:26:33 -0000 X-Filtered-by: Plusnet (hmail v1.01) X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Jan 2004 22:26:31 -0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1Aj4KN-000Epe-H8 for dave@picks.force9.co.uk; Tue, 20 Jan 2004 22:26:31 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Aj4Jo-0006hx-Qi for rs_out@blacksheep.org; Tue, 20 Jan 2004 22:25:56 +0000 Received: from [62.58.50.89] (helo=postbode02.zonnet.nl) by post.thorcom.com with esmtp (Exim 4.14) id 1Aj4Jn-0006hm-R9 for rsgb_lf_group@blacksheep.org; Tue, 20 Jan 2004 22:25:55 +0000 Received: (qmail 21672 invoked by uid 10); 20 Jan 2004 22:25:24 -0000 Received: (vexira-qq 21592-BE295BA1 invoked from network) 20 Jan 2004 23:25:19 +0100 X-Fake-Domain: unknown Received: from unknown (HELO ibm) ([62.59.190.94]) (envelope-sender ) by postbode02.zonnet.nl (qmail-ldap-1.03) with SMTP for < >; 20 Jan 2004 22:25:19 -0000 X-Bad-Message-ID: no DNS (ibm) Message-ID: <003d01c3dfa3$4766f960$2102000a@ibm> From: "Dick" To: rsgb_lf_group@blacksheep.org References: <1074543877.400c3d051a334@webmail2.kuleuven.be><5.1.0.14.0.20040120090129.0362e1d0@u0019445.kuleuven.be> <5.1.0.14.0.20040120155308.036a8a60@u0019445.kuleuven.be> Date: Tue, 20 Jan 2004 23:17:26 +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 V6.00.2800.1106 X-Antivirus: checked by Vexira MailArmor (version: 2.0.1.16; VAE: 6.23.0.2; VDF: 6.23.0.29; host: postbode02.zonnet.nl) Subject: LF: TC44/MUR1660 question...thanks..... Content-Type: text/html; charset=windows-1252 X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.7 required=5.0 tests=FROM_ENDS_IN_NUMS,HTML_30_40,HTML_MESSAGE autolearn=no version=2.60 X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SPAMFiltered: yes X-Spam-Rating: 2 Content-transfer-encoding: 8bit

Thanks to all who replied to my question.

Sorry to see that these FET-drivers are not (yet) a widely available

product.

Marek's suggestion of using an ICL7667 isn't an bad idea at all.

I know the person I Holland who sells them; but hadn't tought of him in

the first place. (he is rather expensive...........)

At the momente I am so unfortunate that I can not afford myself to buy

any expensive parts; so it really has to be a lot of 'junk-box'material to be used.

Meanwhile I am searching for old (second-hand?) computer powersupply's

which might contain also sone usefull components.

I downloaded several designs now; also the quarter kilowatt amplifier from G0MRF,

which seems to use no driver IC..........

Probably my first experimental 137kHz set-up will be something like the DF3LP

"impatient design", simple straight in the old fashioned way.......

Dick, pa4vhf (the VFO is running....................more later?????)