Return-Path: Received: (qmail 6839 invoked from network); 17 Feb 2000 22:40:29 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by bells.core.plus.net.uk with SMTP; 17 Feb 2000 22:40:29 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12LZTG-0004Pz-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 17 Feb 2000 22:32:26 +0000 Received: from mashie.force9.net ([195.166.128.30]) by post.thorcom.com with smtp (Exim 3.02 #1) id 12LZTE-0004Pu-00 for rsgb_lf_group@blacksheep.org; Thu, 17 Feb 2000 22:32:25 +0000 Received: (qmail 27895 invoked from network); 17 Feb 2000 22:32:17 -0000 Received: from mayfly.plus.net.uk (HELO mayfly.force9.net) (195.166.128.28) by mashie.force9.net with SMTP; 17 Feb 2000 22:32:16 -0000 Received: (qmail 9188 invoked from network); 17 Feb 2000 22:32:15 -0000 Received: from 219.01-04.quay.dial.plus.net.uk (HELO main) (212.159.76.219) by mayfly.plus.net.uk with SMTP; 17 Feb 2000 22:32:15 -0000 Message-ID: <005701bf7997$89008b00$0600a8c0@main> From: "Dave" To: rsgb_lf_group@blacksheep.org References: <38AC65EC.29EED15A@alg.demon.co.uk> Subject: LF: Re: Components used in Ropex TX Date: Thu, 17 Feb 2000 22:36:22 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2014.211 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Dear Steve and all. The PA devices in the Ropex are IRF1010N mosfets (Farnell part no. 637-397 at £3.10 each) and the driver chip, which may have gone with them, is an SG3525. Farnell part 408-359 at £1.14 each. I hope that helps! 73, Dave G3YXM. > > I have just had a telephone call from Bob G8RW to say that his Ropex TX > has failed. He suspects that the PA devices have blown, after giving > many months of reliable service. As a result, Bob is currently QRT on > 136 kHz. > > Bob has tried to identify the semiconductors used, but is unable to > locate any markings or part numbers on the Ropex PA devices. > > Does anyone know what devices are used in this TX; and where they may be > obtained? > > Regards to all, > Steve GW4ALG > >