Return-Path: Received: (qmail 3506 invoked from network); 20 Feb 2004 20:00:13 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore03.plus.net with SMTP; 20 Feb 2004 20:00:13 -0000 Received: (qmail 8572 invoked from network); 20 Feb 2004 20:00:13 -0000 Content-Transfer-Encoding: 8bit X-Filtered-by: Plusnet (hmail v1.01) X-Priority: 3 X-MSMail-Priority: Normal X-Spam-detection-level: 11 Received: from ptb-mxcore02.plus.net (212.159.14.216) by ptb-mxscan02.plus.net with SMTP; 20 Feb 2004 20:00:11 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (Exim) id 1AuGol-00026P-Os for dave@picks.force9.co.uk; Fri, 20 Feb 2004 20:00:11 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuGo3-0002YT-3W for rs_out@blacksheep.org; Fri, 20 Feb 2004 19:59:27 +0000 Received: from [151.164.30.28] (helo=mta4.rcsntx.swbell.net) by post.thorcom.com with esmtp (Exim 4.14) id 1AuGnx-0002YJ-ET for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 19:59:21 +0000 Received: from willow.nutstreet.net (adsl-66-139-38-87.dsl.tulsok.swbell.net [66.139.38.87]) by mta4.rcsntx.swbell.net (8.12.10/8.12.10) with ESMTP id i1KJx7Zq018454 for ; Fri, 20 Feb 2004 13:59:19 -0600 (CST) Received: from willow.nutstreet.net (localhost.localdomain [127.0.0.1]) by willow.nutstreet.net (8.12.10/8.12.10) with ESMTP id i1KJxAmC003841 for ; Fri, 20 Feb 2004 13:59:10 -0600 Received: from localhost (eric@localhost) by willow.nutstreet.net (8.12.10/8.12.10/Submit) with ESMTP id i1KJxAoW003837 for ; Fri, 20 Feb 2004 13:59:10 -0600 Date: Fri, 20 Feb 2004 13:59:09 -0600 (CST) From: "Eric KD5UWL" To: rsgb_lf_group@blacksheep.org In-reply-to: <002901c3f7e4$ef6b59e0$a71279d1@jsm> Message-ID: References: <000701c3f7a9$3efe6920$6507a8c0@Main> <002901c3f7e4$ef6b59e0$a71279d1@jsm> MIME-Version: 1.0 Subject: Re: LF: Antenna Insulators Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Spam-Checker-Version: SpamAssassin 2.60 (1.212-2003-09-23-exp) on post.thorcom.com X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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: 1 On Fri, 20 Feb 2004, Steve McDonald wrote: > Has anyone had success using white PVC pipe (say ~ 1.5" dia) for insulators? > I am wondering if a 12 -18" piece at the voltage ends of my flatop would be > enough to prevent any flash-over? I am about to find out because I've built just such insulators for my flattop. Mine are 2cm dia by about 35cm and have 9cm corona rings on each end. I'll have pictures soon but are just like the ones Ralph W5JGV built as seen here: http://www.emachine.com/insulators/ring_finished_insulator.jpg That picture is from Ralph's page for these insulators which is here: http://www.emachine.com/insulators.htm The mast material for my flattop was delivered yesterday, so I hope to have WD2XFX back on the air by the time the weekend is over ... and I'll see how these insulators perform. Good luck, Eric