Return-Path: Received: from mtain-mc10.r1000.mx.aol.com (mtain-mc10.r1000.mx.aol.com [172.29.96.82]) by air-mb02.mail.aol.com (v129.4) with ESMTP id MAILINMB021-a18f4cffa4973c7; Wed, 08 Dec 2010 10:30:31 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-mc10.r1000.mx.aol.com (Internet Inbound) with ESMTP id 96CC038000148; Wed, 8 Dec 2010 10:30:28 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1PQLxS-0004vq-Bx for rs_out_1@blacksheep.org; Wed, 08 Dec 2010 15:29:30 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1PQLxR-0004vh-OM for rsgb_lf_group@blacksheep.org; Wed, 08 Dec 2010 15:29:29 +0000 Received: from warsl404pip4.highway.telekom.at ([195.3.96.117] helo=email.aon.at) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1PQLxP-0005uU-2p for rsgb_lf_group@blacksheep.org; Wed, 08 Dec 2010 15:29:29 +0000 Received: (qmail 6058 invoked from network); 8 Dec 2010 15:29:20 -0000 Received: from 188-23-68-230.adsl.highway.telekom.at (HELO [192.168.1.101]) ([188.23.68.230]) (envelope-sender ) by smarthub91.highway.telekom.at (qmail-ldap-1.03) with SMTP for ; 8 Dec 2010 15:29:20 -0000 From: Gerhard Hickl To: rsgb_lf_group@blacksheep.org In-Reply-To: <002201cb96e5$d03718a0$0401a8c0@xphd97xgq27nyf> References: <002201cb96e5$d03718a0$0401a8c0@xphd97xgq27nyf> Date: Wed, 08 Dec 2010 16:29:20 +0100 Message-ID: <1291822160.1823.15.camel@gerhard-desktop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,none Subject: Re: LF: Computer psu Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 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-aol-global-disposition: G x-aol-sid: 3039ac1d60524cffa4940434 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Hi Mal ! Here's another Link: http://www.antennex.com/preview/archive3/powers.htm Mostly the screws of PCB provide the electrical connection between earth and negative side. Sometimes it's enough to remove the copper of the PCB in this area or using insulating washers between PCB and the metal of the chassis. Some or even most of the units also require a minimum load (in the 50mA range) in order to work properly. Mine is working without such a minimum load but making a chirping sound then.... 73 OE3GHB Gerhard Am Mittwoch, den 08.12.2010, 14:40 +0000 schrieb mal hamilton: > All > Does anyone know the plug/pin connection voltages for a typical > desktop computer smpsu. > I expect its the large 20 pin plug that goes to the motherboard. Some > of these units I have discovered deliver 12 v + at 15 amps and several > in series would be useful for a high voltage psu for a FET PA. > Any info would be useful for would be modifiers of such units, and if > the neg side can be isolated from the chassis. > > de mal/g3kev >