Return-Path: Received: (qmail 5807 invoked from network); 30 Jan 2002 20:39:32 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur-qfe1-smtp-plusnet.harl.plus.net with SMTP; 30 Jan 2002 20:39:32 -0000 X-MSMail-Priority: Normal Received: (qmail 2839 invoked from network); 30 Jan 2002 20:39:36 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 30 Jan 2002 20:39:36 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16W1SY-0006Rr-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 30 Jan 2002 20:35:58 +0000 Received: from mail-1.tiscalinet.it ([195.130.225.147] helo=mail.tiscalinet.it) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16W1SX-0006Rm-00 for rsgb_lf_group@blacksheep.org; Wed, 30 Jan 2002 20:35:57 +0000 Received: from orion.pii.net (62.11.52.157) by mail.tiscalinet.it (5.5.053) id 3C35BE2E00BCB499 for rsgb_lf_group@blacksheep.org; Wed, 30 Jan 2002 21:34:31 +0100 Received: (from clapo@localhost) by orion.pii.net (8.9.3/8.9.3) id TAA00748 for rsgb_lf_group@blacksheep.org; Wed, 30 Jan 2002 19:32:08 +0100 Message-ID: X-Mailer: XFMail 1.3 [p0] on Linux X-Priority: 3 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-reply-to: Date: Wed, 30 Jan 2002 19:32:08 +0100 (CET) From: "Claudio" To: rsgb_lf_group@blacksheep.org Subject: RE: LF: Tesla Coil as an antenna Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: On 29-Jan-02 Tom Tishken KD4WOV wrote: > > > I have thought about keeping the primary coil in mineral oil for heat > dissipation, any suggestions about cooling of the primary? What do you all > use to keep your LF antennas cool? Why not using a copper pipe and circulating distilled water (or car antifreeze fluid) inside it? The fluid MUST be non-conductive! I have seen a kW power amplifier project for 23 cm in an ARLL Handbook using this cooling system. 73 de Claudio ---------------------------------------------------------------------- Claudio Pozzi http://www.qsl.net/ik2pii happy Linux user E-Mail: Claudio Date: 30-Jan-02 Time: 19:27:07 This message was sent by XFMail ----------------------------------------------------------------------