Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-da04.r1000.mx.aol.com (Internet Inbound) with ESMTP id AF0E53800008F; Sat, 1 Oct 2011 03:49:54 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1R9uJd-0008KQ-7I for rs_out_1@blacksheep.org; Sat, 01 Oct 2011 08:48:57 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1R9uJc-0008KH-R6 for rsgb_lf_group@blacksheep.org; Sat, 01 Oct 2011 08:48:56 +0100 Received: from out1.ip02ir2.opaltelecom.net ([62.24.128.238]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1R9uJa-0003xu-Cb for rsgb_lf_group@blacksheep.org; Sat, 01 Oct 2011 08:48:56 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AsAAAJbEhk5cF/6h/2dsb2JhbABBhGWEO5AEQ45KgQaBTgUBAQQBCAEBAxYPASMCJgYBAQMFAgEDEQQBAQECAgUhAgIUAQQaBhYIBhMKAQICAQGHagKlEJE7gS2EZIETBKUf X-IronPort-AV: E=Sophos;i="4.68,472,1312153200"; d="scan'208";a="375983856" Received: from host-92-23-254-161.as13285.net (HELO xphd97xgq27nyf) ([92.23.254.161]) by out1.ip02ir2.opaltelecom.net with SMTP; 01 Oct 2011 08:47:46 +0100 Message-ID: <000901cc800e$67610210$0401a8c0@xphd97xgq27nyf> From: "mal hamilton" To: References: <68BE37BD69E54DEE89CEBA8E30E9B94E@PcMinto> <4E4956DA.1060201@iup.uni-heidelberg.de> <4E49643E.5090708@freenet.de> <4E496FF9.4040608@iup.uni-heidelberg.de> <0A4ED65EC3B244A3BD0DAD6ACFF43793@JimPC> <4E4A5597.4070709@iup.uni-heidelberg.de> <3746D901368F4C139E414F9110153EEE@JimPC> <4E4A9A1F.2060600@iup.uni-heidelberg.de> <1B55B625C3CD4D529EC361D9C5D79D96@JimPC> <4E4AD4C8.8000509@iup.uni-heidelberg.de> <4E4AEF31.5010306@iup.uni-heidelberg.de> <1FF2FAD9854F4890A338A9F862D93FE9@JimPC> <8CE2AD319756ED7-1C20-14370@Webmail-m104.sysops.aol.com> <4E4BC177.6050902@iup.uni-heidelberg.de> <001f01cc5cf9$4b734780$0401a8c0@xphd97xgq27nyf> <4E4BF289.2070500@iup.uni-heidelberg.de> <003301cc5d07$d4e2a840$0401a8c0@xphd97xgq2! 7nyf> <4E4C24FE.8030905@iup.uni-hei! delberg.de> <002501cc5d33$a7f37f90$0401a8c0@xphd97xgq27nyf> <4E84C757.2040605@iup.uni-heidelberg.de> <000e01cc7f59$8fcc9cb0$0401a8c0@xphd97xgq27nyf> <20108458101B4C2F82BCA69885FB890E@JimPC> <4E863BD6.7060004@iup.uni-heidelber g.de> Date: Sat, 1 Oct 2011 07:31:43 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Ferrite RX antennas Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: ** X-Spam-Status: No, hits=2.5 required=5.0 tests=BANG_MONEY,CELL_PHONE_BOOST, LINES_OF_YELLING autolearn=no version=2.63 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-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:510779808:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d404c4e86c6222a5e X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none NEW 500 series HI-Q COILS Q over 400, mobile antenna individual coils, one for each band 160 - 10 metres ( These coils are air wound and sealed in a transparent gas tube. DAVIS ELECTRONICS, BURBANK, CALIFORNIA Year 1956 So what is new!!!!!!!!!!! Old Timers will remember these coils but the New amateurs in recent years think they have discovered something, when in fact it has all GONE BEFORE except they dont know that. de G3KEV ----- Original Message ----- From: "Stefan Schäfer" To: Sent: Friday, September 30, 2011 9:59 PM Subject: Re: LF: Ferrite RX antennas > Hello Jim, > > Maybe liquid helium and a superconductor material? ;-) > > 73, Stefan > > Am 30.09.2011 15:14, schrieb James Moritz: > > Dear Mal, LF Group, > > > > G3KEV wrote: > >> Some commercial produced coils encased in helium tubes had vy high Q > >> that would rival the ferrite variety used today. > > > > Helium tubes? Sounds like a good way of separating unwary amateurs > > from their money! > > > > Cheers, JimMoritz > > 73 de M0BMU >