Return-Path: Received: (qmail 20837 invoked from network); 14 Aug 2002 08:37:19 -0000 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit Received: from marstons.services.quay.plus.net (212.159.14.223) by mailstore with SMTP; 14 Aug 2002 08:37:19 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 4763 invoked by uid 10001); 14 Aug 2002 08:42:23 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from post.thorcom.com (193.82.116.70) by marstons.services.quay.plus.net with SMTP; 14 Aug 2002 08:42:23 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 17evLZ-0004Lq-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 14 Aug 2002 11:25:49 +0100 Received: from anchor-post-35.mail.demon.net ([194.217.242.85]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 17evLY-0004Ll-00 for rsgb_lf_group@blacksheep.org; Wed, 14 Aug 2002 11:25:48 +0100 Received: from telemetry.demon.co.uk ([194.222.19.114]) by anchor-post-35.mail.demon.net with esmtp (Exim 3.36 #2) id 17etb0-0003FL-0U for rsgb_lf_group@blacksheep.org; Wed, 14 Aug 2002 09:33:39 +0100 Message-ID: Date: Wed, 14 Aug 2002 09:10:43 +0100 To: rsgb_lf_group@blacksheep.org From: "Tom Boucher" Subject: Re: LF: Oscillator Stabilty for QRSS? In-reply-to: <000a01c242fb$2b68ace0$7211f4cc@jsm> MIME-Version: 1.0 X-Mailer: Turnpike Version 3.03a Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Steve Buy one of the ceramic (as opposed to quartz) resonators in the 2.5 MHz region and use in a VXO circuit. About 100pF variable gives me band coverage. Divide by 18 for 136 output, any drift is also divided by 18. It's nice and stable for normal CW operation but I have never actually measured its stablilty so have no idea if good enough for QRSS. 73, Tom G3OLB In message <000a01c242fb$2b68ace0$7211f4cc@jsm>, Steve McDonald writes >Perhaps someone who has already 'been there' can offer their advice. >I would like to start building the exciter stages for what will be my 136KHz tx