Return-Path: Received: (qmail 3336 invoked from network); 11 Nov 2002 11:35:59 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 11 Nov 2002 11:35:59 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 12898 invoked from network); 11 Nov 2002 10:35:13 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 11 Nov 2002 10:35:13 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18BBtg-0005YO-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 11 Nov 2002 10:34:24 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.10) id 18BBtg-0005YF-00 for rsgb_lf_group@blacksheep.org; Mon, 11 Nov 2002 10:34:24 +0000 Received: from gemini ([147.197.200.44] helo=gemini.herts.ac.uk) by hestia.herts.ac.uk with esmtp (Exim 3.22 #1) id 18BBqk-0000CS-00 for rsgb_lf_group@blacksheep.org; Mon, 11 Nov 2002 10:31:22 +0000 Received: from [147.197.232.252] (helo=rsch-15.herts.ac.uk) by gemini.herts.ac.uk with esmtp (Exim 3.33 #1) id 18BBqa-0004vp-00 for rsgb_lf_group@blacksheep.org; Mon, 11 Nov 2002 10:31:12 +0000 Message-ID: <5.1.0.14.0.20021111102152.00a924d8@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Mon, 11 Nov 2002 10:31:10 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: Question on building homebrew variable caps... Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=0.1 required=5.0tests=DEAR_SOMEBODY,IN_REP_TO,SPAM_PHRASE_00_01version=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group At 21:28 10/11/2002 -0600, you wrote: >I would like to know if anyone has built variable capacitors for >transmitters or tuners. I would like to build a variable capacitor that is >at least 100pf and can handle 40 amps of RF current. Does anyone have any >ideas or links to some articles??? >Thanks es 73's, >Mike>WE0H >http://www.we0h.us/lf.html Dear Mike, LF group, What frequency is it for? Surely not LF - at 185kHz, the voltage rating might be a problem - about 340kV with 40A! Cheers, Jim Moritz 73 de M0BMU