Return-Path: X-Spam-DCC: paranoid 1290; 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=-0.5 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, FORGED_RCVD_HELO,RATWARE_GECKO_BUILD,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 u1SHv1Fs003544 for ; Sun, 28 Feb 2016 18:57:02 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aa5T8-0002nc-Ow for rs_out_1@blacksheep.org; Sun, 28 Feb 2016 17:49:22 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aa5T8-0002nT-Gv for rsgb_lf_group@blacksheep.org; Sun, 28 Feb 2016 17:49:22 +0000 Received: from brian.netcom.co.uk ([217.72.171.64]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1aa5RK-0007uc-QP for rsgb_lf_group@blacksheep.org; Sun, 28 Feb 2016 17:49:21 +0000 Received: from sb.abelian.org (i-194-106-52-83.freedom2surf.net [194.106.52.83]) by brian.netcom.co.uk (Postfix) with ESMTP id 9CCEE3201D0 for ; Sun, 28 Feb 2016 17:24:35 +0000 (GMT) Received: from [127.0.0.1] (localhost [127.0.0.1]) by sb.abelian.org (Postfix) with ESMTP id 6F70228A0227 for ; Sun, 28 Feb 2016 17:47:03 +0000 (UTC) Message-ID: <56D33297.9080209@abelian.org> Date: Sun, 28 Feb 2016 17:47:03 +0000 From: Paul Nicholson User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <56D08BEF.7070708@abelian.org> <8D33ED4DA8562EE-14E0-601004@webmail-vm018.sysops.aol.com> <56D0934B.1040700@abelian.org> <56D098D3.80501@abelian.org> <56D0B22B.2020107@abelian.org> <56D0B58A.80908@tiscali.co.uk> <56D0C373.1090004@abelian.org> <56D0CC55.1060400@tele2.se> <56D0D587.7080309@abelian.org> <56D1DEAF.10202@abelian.org> <56D1FD5F.3010301@abelian.org> <56D2DA6D.20209@tele2.se> <56D326F1.1000102@abelian.org> In-Reply-To: <56D326F1.1000102@abelian.org> X-Scan-Signature: 0b2d339ae1d48966556dfb6ad64e2bce Subject: Re: LF: MF: EbNaut 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 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 7088 > I'll run now for an hour to see if the PA is reliable > from 17:00 UT for a while. Lasted until 17:21. Only one complete EbNaut, 17:00:00 to 17:08:32 The FETs are getting a lot hotter and so is the transformer, even though the DC input current is about the same. Primary current should be about the same, secondary current up by about 40%, waveforms looked similar to when running on 27V but with twice the voltage. I must be missing something. Maybe I should stick to software, at least I've a rough what I'm doing with code. This PA stuff is a black art. -- Paul Nicholson --