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: EATSERVER: mailn 1166; 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 v3LJ1eFp030370 for ; Fri, 21 Apr 2017 21:01:42 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1d1dlZ-0005im-OZ for rs_out_1@blacksheep.org; Fri, 21 Apr 2017 19:58:49 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1d1dlZ-0005ib-GG for rsgb_lf_group@blacksheep.org; Fri, 21 Apr 2017 19:58:49 +0100 Received: from smtpout4.wanadoo.co.uk ([80.12.242.68] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.89) (envelope-from ) id 1d1dlW-0002Sq-JC for rsgb_lf_group@blacksheep.org; Fri, 21 Apr 2017 19:58:48 +0100 Received: from AGB ([95.151.119.206]) by mwinf5d60 with ME id B6yk1v00M4TGmgX036yk0T; Fri, 21 Apr 2017 20:58:45 +0200 X-ME-Helo: AGB X-ME-Date: Fri, 21 Apr 2017 20:58:45 +0200 X-ME-IP: 95.151.119.206 Message-ID: From: "Graham" To: References: <11510559084.20170421191030@gmail.com> <58FA559C.1060500@posteo.de> In-Reply-To: <58FA559C.1060500@posteo.de> Date: Fri, 21 Apr 2017 19:58:44 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Antivirus: Avast (VPS 170420-10, 20/04/2017), Outbound message X-Antivirus-Status: Clean X-Scan-Signature: 64437c466041e93ffedda7fb96b22b71 Subject: Re: LF: Dummy load testing without LPF? Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response 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: RO X-Status: X-Keywords: X-UID: 11423 Unless the LPF is part of the tuning ? -------------------------------------------------- From: "DK7FC" Sent: Friday, April 21, 2017 7:55 PM To: Subject: Re: LF: Dummy load testing without LPF? > Hi Chris, > > Without the LPF, it is even less critical because there is a pure > resistive load for the whole output spectrum. > So just do it... > > 73 from JN49KL09AB > Stefan > > > > Am 21.04.2017 20:10, schrieb Chris Wilson: >> Hello LF'ers, >> >> >> Push pull output, Class D low frequency (136kHz) RF amp, circa 500 >> Watts. If I want to test it for a few hours into a dummy load does it >> matter if the low pass filter network usually used is not between the >> output transformer and the dummy load? I want to leave it running >> overnight and I am modding the LPF and it's in bits until next week. >> Thanks. >> >> >> > --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus