Return-Path: X-Spam-DCC: paranoid 1181; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,SPF_PASS autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u429AZtc013899 for ; Mon, 2 May 2016 11:10:36 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ax9ii-0002CD-Sr for rs_out_1@blacksheep.org; Mon, 02 May 2016 10:00:48 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ax9ig-0002C4-BY for rsgb_lf_group@blacksheep.org; Mon, 02 May 2016 10:00:46 +0100 Received: from s16315160.onlinehome-server.info ([87.106.80.234] helo=mail.vigilant.es) by relay1.thorcom.net with esmtp (Exim 4.87) (envelope-from ) id 1ax9id-0007St-5q for rsgb_lf_group@blacksheep.org; Mon, 02 May 2016 10:00:45 +0100 Received: from servigilant.vigilant.local ([87.216.178.132]) by vigilant.es with MailEnable ESMTP; Mon, 2 May 2016 11:00:25 +0200 Received: from servigilant.vigilant.local ([fe80::3cdf:95f8:c1c9:3931]) by servigilant.vigilant.local ([fe80::3cdf:95f8:c1c9:3931%13]) with mapi id 14.03.0123.003; Mon, 2 May 2016 11:00:23 +0200 From: =?iso-8859-1?Q?VIGILANT_Luis_Fern=E1ndez?= To: "rsgb_lf_group@blacksheep.org" Thread-Topic: RF ceramic feed through isolators Thread-Index: AQHRo86EUZiS2AXEkUuOR4UTCkbMcp+lWCEg Date: Mon, 2 May 2016 09:00:22 +0000 Message-ID: <579355A36AEE9D4FA555C45D556003AB53B82C70@servigilant.vigilant.local> In-Reply-To: <57263A95.70800@posteo.de> Accept-Language: es-ES, en-US Content-Language: es-ES X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.0.2] x-avast-antispam: clean, score=2 x-original-content-type: application/ms-tnef MIME-Version: 1.0 X-Scan-Signature: 49f0f587e44d6711c57b8a4e950ba850 Subject: LF: RE: RF ceramic feed through isolators Content-Type: text/plain; charset="iso-8859-1" X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by paranoid.lipkowski.org id u429AZtc013899 Status: O X-Status: X-Keywords: X-UID: 7969 Hi xLF ;-) Your Oskar satellite seems ideal to be filled with SF6 to get a huge voltage isolation inside Unfortunately this nasty gas has a huge greenhouse potential and no idea about the price, but probably not cheap. It is heavier than air, so would keep Oskar filled as it were water Other options may be CO2 or N2. The goal should be to remove any moisture (water in air) Vacuum should work. But if the pump is very poweful you can get an slim Oskar and a flatened Coil :( So. Don't frill Oskar bottom yet !!! Go to the forest and think about it ;-) 73 de Luis EA5DOM -----Mensaje original----- De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] En nombre de DK7FC Enviado el: domingo, 01 de mayo de 2016 19:19 Para: rsgb_lf_group@blacksheep.org Asunto: LF: RF ceramic feed through isolators Hi all, On ebay there are ceramic feed through isolators available, 2 pieces for 14 EUR. To my surprise he distrubutor sent me 3 for the same price. One set has just been installed into the lid of my ton "Oskar" :-) I think 15 kV rms will be the absolute limit , i will see. For higher power (on VLF) i will need to mount it into a larger plate which has to be mounted on the lit then. Unfortunately it is not water proof, see the images. I hope to fix that by using a 2 component glue. Oskar will carry the loading coil with a maximum of savety and security. https://dl.dropboxusercontent.com/u/19882028/VLF/20160501_190737.jpg https://dl.dropboxusercontent.com/u/19882028/VLF/20160501_190608.jpg https://dl.dropboxusercontent.com/u/19882028/VLF/20160501_190554.jpg 73, Stefan