Return-Path: Received: (qmail 34455 invoked from network); 20 Feb 2004 19:27:05 -0000 Received: from unknown (HELO ptb-mxscan02.plus.net) (212.159.14.236) by ptb-mailstore04.plus.net with SMTP; 20 Feb 2004 19:27:05 -0000 Received: (qmail 77567 invoked from network); 20 Feb 2004 19:27:04 -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 19:26:56 -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 1AuGIa-000JnF-FJ for dave@picks.force9.co.uk; Fri, 20 Feb 2004 19:26:56 +0000 X-Fake-Domain: majordom Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1AuGHs-0001Wg-Tr for rs_out@blacksheep.org; Fri, 20 Feb 2004 19:26:12 +0000 Received: from [195.22.0.25] (helo=magneto.esoterica.pt) by post.thorcom.com with esmtp (Exim 4.14) id 1AuGHs-0001WX-9d for rsgb_lf_group@blacksheep.org; Fri, 20 Feb 2004 19:26:12 +0000 X-Fake-Domain: Slave_13.esoterica.pt Received: from Slave_13.esoterica.pt (adsl-norte02-1-206.vianw.pt [80.172.144.206]) by magneto.esoterica.pt (8.12.11/8.12.11) with ESMTP id i1KJQBl6018848 for ; Fri, 20 Feb 2004 19:26:11 GMT Message-ID: <5.2.0.9.2.20040220191209.02459608@pop.vianw.pt> X-Sender: nx4ywv@pop.vianw.pt X-Mailer: QUALCOMM Windows Eudora Version 5.2.0.9 Date: Fri, 20 Feb 2004 19:19:40 +0000 To: rsgb_lf_group@blacksheep.org From: "Brian Rogerson" In-reply-to: <002901c3f7e4$ef6b59e0$a71279d1@jsm> References: <000701c3f7a9$3efe6920$6507a8c0@Main> 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 Hi Steve I have used 1000mm (~3ft) of about 22mm diameter grey pvc waterpipe at each end of the marconi, together with two egg type insultors at each end of the pipe. ie -----------O--===============================--O------------- Probably not recommended because of the possible accumulation of moisture in the pipe, but has worked well for me for several years. 73, Brian CT1DRP At 19:08 20/02/2004, you 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? > >Steve / VE7SL