Return-Path: Received: (qmail 23688 invoked from network); 12 Mar 2001 18:00:23 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 12 Mar 2001 18:00:23 -0000 Received: (qmail 4137 invoked from network); 12 Mar 2001 18:00:31 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 12 Mar 2001 18:00:31 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14cWVn-0006tF-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 12 Mar 2001 17:53:39 +0000 Received: from mta07-svc.ntlworld.com ([62.253.162.47]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14cWVk-0006tA-00 for rsgb_lf_group@blacksheep.org; Mon, 12 Mar 2001 17:53:36 +0000 Received: from compaq ([62.253.49.136]) by mta07-svc.ntlworld.com (InterMail vM.4.01.02.27 201-229-119-110) with SMTP id <20010312175315.GBLH281.mta07-svc.ntlworld.com@compaq> for ; Mon, 12 Mar 2001 17:53:15 +0000 Message-ID: <003401c0ab1d$51242b20$8831fd3e@compaq> From: "tracey.gardner" To: rsgb_lf_group@blacksheep.org Subject: LF: 1792 coupling caps Date: Mon, 12 Mar 2001 17:53:15 -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 4.72.3110.5 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: In my manual all the RF coupling capacitors, C1, C4 & C11, in the 1792 front end are shown/listed as 1uF. The manual is Issue 8.5.85-350 and is for the RA1792 (83000,82129 and 85830) apparently these model numbers relate to different synthesisers. The guy that I bought the manual from wanted to know the serial number etc before he supplied a copy to me. The manual quotes the frequency range as being 150kHz - 30MHz. Brian's 50v rated capacitor went short circuit and proceeded to put the 15v supply to earth via an 18 ohm resistor needless to say it cooked very quickly! Perhaps that's why they changed to 100v rating in later models? 73s Tracey