Return-Path: Received: (qmail 14626 invoked from network); 8 Jan 2001 15:44:07 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 8 Jan 2001 15:44:07 -0000 Received: (qmail 27482 invoked from network); 8 Jan 2001 15:46:44 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 8 Jan 2001 15:46:44 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 14FeM7-0006H4-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 08 Jan 2001 15:37:07 +0000 Received: from hs-img-5.compuserve.com ([149.174.177.154] helo=sphmgaae.compuserve.com) by post.thorcom.com with esmtp (Exim 3.16 #1) id 14FeM5-0006FH-00 for rsgb_lf_group@blacksheep.org; Mon, 08 Jan 2001 15:37:05 +0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: (from mailgate@localhost) by sphmgaae.compuserve.com (8.9.3/8.9.3/SUN-1.9) id KAA15394 for rsgb_lf_group@blacksheep.org; Mon, 8 Jan 2001 10:36:24 -0500 (EST) Date: Mon, 8 Jan 2001 10:35:42 -0500 From: "Holger 'Geri' Kinzel, DK8KW" Subject: LF: Bonfires To: rsgb_lf_group@blacksheep.org Message-ID: <200101081036_MC2-C0EB-CF9F@compuserve.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Disposition: inline Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Jim, M0BMU wrote: >I would certainly be interested to hear of a material for making >loading coil shelters which is at the same time fireproof, a good >dielectric, and easily worked.< ... question from my side: why build any shelters for loading coils at all? I have wound my 3.4 mH loading coild using normal 1.5 square mm litz wire from the hardware store on a core made of a combination of plastics and some hard wood rods as a carrier. I have put this coil about 1/3 of my vertical antenna height up without any protection. Result: no problem with rain/snow or whatever (however: running only 350 Watts output ...) and quite some improvement in receiving and transmitting signal strength plus much less voltage on the remaining fine-tuning 0.9 mH variometer in my shack and less trouble with my two cats passing by the coil insde the shack (see picture at http://www.qru.de/station.htm, about half way down the page). Best 73 Geri, DK8KW (W1KW)