Return-Path: Received: from mtain-mc10.r1000.mx.aol.com (mtain-mc10.r1000.mx.aol.com [172.29.96.82]) by air-de06.mail.aol.com (v127_r1.1) with ESMTP id MAILINDE063-5eb84b8cf83a5b; Tue, 02 Mar 2010 06:36:26 -0500 Received: from post.thorcom.com (post.thorcom.com [193.82.116.20]) by mtain-mc10.r1000.mx.aol.com (Internet Inbound) with ESMTP id 0894A38000054; Tue, 2 Mar 2010 06:36:24 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1NmQNl-0002s6-Sn for rs_out_1@blacksheep.org; Tue, 02 Mar 2010 11:35:21 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1NmQNl-0002rx-Hb for rsgb_lf_group@blacksheep.org; Tue, 02 Mar 2010 11:35:21 +0000 Received: from mx.omskcity.com ([79.133.160.2]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1NmQNj-0006Dc-CO for rsgb_lf_group@blacksheep.org; Tue, 02 Mar 2010 11:35:21 +0000 Received: from noname.nodomain.nowhere (host209.161-133-79.sotline.ru [79.133.161.209]) by mx.omskcity.com (8.13.6/8.13.6) with ESMTP id o22BZFHO048520 for ; Tue, 2 Mar 2010 17:35:16 +0600 (OMST) (envelope-from fitec@omskcity.com) Received: from localhost (fitec@localhost) by noname.nodomain.nowhere (8.8.5/8.8.5) with ESMTP id SAA00301 for ; Tue, 2 Mar 2010 18:40:22 GMT X-Authentication-Warning: noname.nodomain.nowhere: fitec owned process doing -bs Date: Tue, 2 Mar 2010 18:40:21 +0000 (GMT) From: "Alexander S. Yurkov" To: rsgb_lf_group@blacksheep.org In-Reply-To: <38A51B74B884D74083D7950AD0DD85E82A1B27@File-Server-HST.hst.e-technik.tu-darmstadt.de> Message-ID: MIME-Version: 1.0 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.1.8 (mx.omskcity.com [79.133.160.2]); Tue, 02 Mar 2010 17:35:18 +0600 (OMST) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: VLF TX experiments_short report Content-Type: TEXT/PLAIN; charset=koi8-r X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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-sid: 3039ac1d60524b8cf83803b1 X-AOL-IP: 193.82.116.20 Content-Transfer-Encoding: quoted-printable X-Mailer: Unknown (No Version) On Mon, 1 Mar 2010, [iso-8859-1] Stefan Sch=E4fer wrote: >=20 > What i wanted to use as the PA is a prototype of a SMPS that was designe= d to operate at abt 50kHz. At 9kHz the ferrite core was already driven in= saturation. By varying the driving f i found, where the saturation occurs= . Then i have known how many primary turns i have to spend at 9kHz. After= applying the new windings everything was right. But the time i had was go= ne and the wind was already to strong. So i told Markus to inform you... >=20 > Now playing/increasing with the number of output windings of the SMPS=20 > transformer i applied the output voltage by a ordinary loudspeaker cable > to the primary air coil that is inductive coupled to the HV coil. I got > 1,6kV rms by applying 60W at the 12V DC input, really not much :-( But > anyway it will be suitable for a first test if a apply 6dB more power or > so. Dear Stefan 3.2 kV (6 dB of 1.6 kV) is too low voltage. Expectations was 20 kV before. Is it any typo? Regards, Alexander