Return-Path: X-Spam-DCC: paranoid 1233; 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 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 tAFMRtXk006020 for ; Sun, 15 Nov 2015 23:27:55 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Zy5hz-0005KI-5a for rs_out_1@blacksheep.org; Sun, 15 Nov 2015 22:23:39 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Zy5hy-0005K9-H9 for rsgb_lf_group@blacksheep.org; Sun, 15 Nov 2015 22:23:38 +0000 Received: from mail-ob0-f180.google.com ([209.85.214.180]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) (Exim 4.86) (envelope-from ) id 1Zy5gu-0001cJ-Fc for rsgb_lf_group@blacksheep.org; Sun, 15 Nov 2015 22:23:37 +0000 Received: by obbbj7 with SMTP id bj7so90484958obb.1 for ; Sun, 15 Nov 2015 14:22:15 -0800 (PST) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=vKP7GvajAL3o4o/WQvT1s7YyUWYysPYVIuOPFF9+VJU=; b=RppnoT9xf4EGam2NtSEgoXY2xHc1C1DdqNSHCFUJeQStalxqU9g42VkqqEnOj35dE9 6jt83QRX1I1KXc3h3mQIOieXdt99xj9YuNEojXoIcjb0gWorwXVBVLsS25BdUekewgpC P6clF0WPJEHPxbzlsM3Q/EOEvZJUNmvljEViNcFJ26TzmYfmNaGnOtkBFChxo3AGl6fI HvjikoCpq4dEpj9dqTZpcX/dSLoQFPDWAsFYgZrHfpXEb371TJoXIZhw3cP9TvABaCAZ qGeNbPf5hDOe0wxPODrBcxz/TQaD6ajDMNLSi0tvDm/BJB4UWwGWiE6Q7G54dbrekj5v 8fcw== MIME-Version: 1.0 X-Received: by 10.182.88.165 with SMTP id bh5mr19487766obb.21.1447626134678; Sun, 15 Nov 2015 14:22:14 -0800 (PST) Received: by 10.202.54.70 with HTTP; Sun, 15 Nov 2015 14:22:14 -0800 (PST) In-Reply-To: References: <4510637253.20151114190626@chriswilson.tv> <825751561.20151114200051@chriswilson.tv> <5647B7A8.2080100@posteo.de> <59E5AA723F314A4DB597D0C13A05319F@Clemens0811> Date: Mon, 16 Nov 2015 09:22:14 +1100 Message-ID: From: Dimitrios Tsifakis To: rsgb_lf_group@blacksheep.org X-Scan-Signature: f38d515a9cad1e977fcfe251941a8120 Subject: Re: LF: Valve LF amps and tank coil size / voltage rating? Content-Type: text/plain; charset=UTF-8 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 10.1.3.10 Status: O X-Status: X-Keywords: X-UID: 5099 If this is of any use to anyone, I have made a simple online calculator: http://people.physics.anu.edu.au/~dxt103/calculators/toroid.php 73, Dimitris VK2COW 2015-11-16 6:29 GMT+11:00 Andy Talbot : > AH HA ......... > I see the significance of your question. 176 = 4 * 44 :-) > > That factor 4.44 (or 4,44) is actually SQRT(2) * PI > > 'jnt > > > On 15 November 2015 at 09:18, Clemens Paul wrote: >> >> >V = 4.44.F.N.A.B = 176.F.N.A.B ? >> >> Written in "German notation": >> 4,44 x F x N x A x B >> >> 73 >> Clemens >> DL4RAJ >> >> >-----Original Message----- >> >From: owner-rsgb_lf_group@blacksheep.org >> >[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of DK7FC >> >Sent: Saturday, November 14, 2015 11:37 PM >> >To: rsgb_lf_group@blacksheep.org >> >Subject: Re: LF: Valve LF amps and tank coil size / voltage rating? >> >> >