Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: INFN-TO: mailn 1233; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v4TDvDOx028051 for ; Mon, 29 May 2017 15:57:15 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dFL77-0004Jn-CC for rs_out_1@blacksheep.org; Mon, 29 May 2017 14:53:41 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dFL77-0004Je-0d for rsgb_lf_group@blacksheep.org; Mon, 29 May 2017 14:53:41 +0100 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1dFL74-0000xX-Bh for rsgb_lf_group@blacksheep.org; Mon, 29 May 2017 14:53:39 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id A499320DE4 for ; Mon, 29 May 2017 15:53:37 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3wbyrJ2gcYz10Br for ; Mon, 29 May 2017 15:53:36 +0200 (CEST) Message-ID: <592C27E0.9080806@posteo.de> Date: Mon, 29 May 2017 15:53:36 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <1456380282.20170524154713@gmail.com> <5925A16B.7050100@posteo.de> <48702557.20170525114046@gmail.com> <5926C96B.7050206@posteo.de> <592BE75B.6050507@posteo.de> <14F17A83F5334ED2A74ED75E758C1DCE@AGB> <592C1F3D.2000408@posteo.de> In-Reply-To: X-Scan-Signature: 0b2d339ae1d48966556dfb6ad64e2bce Subject: Re: LF: Iron dust toroids and heating/H bridge Content-Type: text/plain; charset=ISO-8859-1; format=flowed 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 2.75 Status: O X-Status: X-Keywords: X-UID: 11820 80 watt, yes that's a good driver. Am 29.05.2017 15:45, schrieb Graham: > More of a power block, that would run on 136/477 with little > modification, > just one out put device and filter needed , low harmonic power levels > probably help .. > > with a dedicated driver 'ic' , possible, fet's would have a longer > life span, ) > may be power level control as well .. the on frequency aspect is > useful > > Found a 80 watt 500 Khz inverter with H ic drive > > Or just wind a transformer .. > > Tnx-G