Return-Path: X-Spam-DCC: paranoid 1102; 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=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, 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 u4ECUaqB027771 for ; Sat, 14 May 2016 14:30:36 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1b1Yes-0004IS-VC for rs_out_1@blacksheep.org; Sat, 14 May 2016 13:27:02 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1b1Yes-0004IJ-Jz for rsgb_lf_group@blacksheep.org; Sat, 14 May 2016 13:27:02 +0100 Received: from lb2-smtp-cloud3.xs4all.net ([194.109.24.26]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1b1Yeq-0004To-Eg for rsgb_lf_group@blacksheep.org; Sat, 14 May 2016 13:27:01 +0100 Received: from [192.168.178.20] ([83.162.220.82]) by smtp-cloud3.xs4all.net with ESMTP id uCSx1s0091nG4D701CSyjY; Sat, 14 May 2016 14:26:59 +0200 From: "Roelof Bakker" To: DK7FC , rsgb_lf_group@blacksheep.org Date: Sat, 14 May 2016 14:26:57 +0200 MIME-Version: 1.0 Message-ID: <57371991.28985.2A7CAE@roelof.ndb.demon.nl> In-reply-to: <5737138D.4050807@posteo.de> References: <5737138D.4050807@posteo.de> X-mailer: Pegasus Mail for Windows (4.70) Content-description: Mail message body X-Scan-Signature: aee9e5eeb35c86f052d502ac97832558 Subject: Re: LF: A transductor instead of a traditional variometer on VLF/LF/MF? Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT 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 Status: O X-Status: X-Keywords: X-UID: 8058 Hello Stefan, This will certainly work. I have used this a long time ago to build a rf sweepgenerator with a linear V/F characteristic. I gather you will need high mu ferrite. 73, Roelof, pa0rdt