Return-Path: Received: (qmail 27858 invoked from network); 10 Nov 2002 15:11:39 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 10 Nov 2002 15:11:39 -0000 Content-Transfer-Encoding: 8bit Received: (qmail 22842 invoked from network); 10 Nov 2002 14:10:58 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 10 Nov 2002 14:10:58 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.10) id 18Asmx-0003Bu-00 for rsgb_lf_group-outgoing@blacksheep.org; Sun, 10 Nov 2002 14:10:11 +0000 Received: from [147.197.200.9] (helo=hestia.herts.ac.uk) by post.thorcom.com with esmtp (Exim 4.10) id 18Asmw-0003Bl-00 for rsgb_lf_group@blacksheep.org; Sun, 10 Nov 2002 14:10:10 +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 18AsmK-0004ml-00 for rsgb_lf_group@blacksheep.org; Sun, 10 Nov 2002 14:09:32 +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 18AsmI-0004OD-00 for rsgb_lf_group@blacksheep.org; Sun, 10 Nov 2002 14:09:30 +0000 Message-ID: <5.1.0.14.0.20021110135548.00a91d88@gemini.herts.ac.uk> X-Sender: mj9ar@gemini.herts.ac.uk X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Sun, 10 Nov 2002 14:06:12 +0000 To: rsgb_lf_group@blacksheep.org From: "James Moritz" In-reply-to: <057f01c2875f$0fd4ea90$0101a8c0@athlon> References: <5.1.0.14.0.20021108112020.00aeef28@gemini.herts.ac.uk> MIME-Version: 1.0 X-MailScanner: No Virus detected Subject: Re: LF: To Ponder over the weekend Content-Type: text/plain; charset=us-ascii; format=flowed X-Spam-Status: No, hits=-1.2 required=5.0tests=DEAR_SOMEBODY,IN_REP_TO,QUOTED_EMAIL_TEXT,REFERENCES, SPAM_PHRASE_00_01version=2.42 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Dear Dave, LF Group, At 08:43 09/11/2002 +1300, you wrote: > The neat thing with the oil dielectric is it is basically self healing , >even if it does arc over- no permanent capacitor damage will result as long >as the power is shut off fast enough.. and that's the current issue-no pun >intended! The un-neat thing about an oil dielectric is its propensity for catching fire... also, I don't think it has particularly low loss at RF - although a lot of big TX capacitors are oil-filled, the oil is there to increase the breakdown voltage, rather than act as the main dielectric, which is usually mica, I believe. Cheers, Jim Moritz 73 de M0BMU