Return-Path: Received: (qmail 7607 invoked from network); 18 Sep 2002 09:22:21 -0000 Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 18 Sep 2002 09:22:21 -0000 Received: (qmail 22536 invoked from network); 18 Sep 2002 09:22:28 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 18 Sep 2002 09:22:28 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.10) id 17rb1J-0002iE-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 18 Sep 2002 10:21:17 +0100 Received: from [165.212.11.112] (helo=cmsoutbound.mx.net) by post.thorcom.com with smtp (Exim 4.10) id 17rb1J-0002i4-00 for rsgb_lf_group@blacksheep.org; Wed, 18 Sep 2002 10:21:17 +0100 Received: from uadvg137.cms.usa.net (HELO cmsoutbound.mx.net) (165.212.11.137) by cmsoutbound.mx.net with SMTP; 18 Sep 2002 09:21:15 -0000 Received: from usa.net [32.97.110.66] by uadvg137.cms.usa.net (ASMTP/dibene@usa.net) via mtad (CM.1201.1.04A) with ESMTP id 648giRJVB0138M37; Wed, 18 Sep 2002 09:21:01 GMT Message-ID: <3D88456C.6090305@usa.net> Date: Wed, 18 Sep 2002 11:20:44 +0200 From: "Alberto di Bene" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: Subject: LF: Re: PSpice question - success ! Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.1 required=5.0tests=PLINGversion=2.31 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Ashlock,William wrote: >Alberto, > >Good to see you now have a waveform. I'm not too fond of your oscillator >circuit since it depends on the internal capacities and beta of the >transistor to work (and these are highly dependent on supply voltage and >temperatures). > Bill, neither am I... it is not a circuit I intend to use, I just found it in SAMPLE subdir of Electronics Workbench, and just wanted to check its behavior when simulated with both packages. But I had modeled another, more conventional, Colpitts oscillator and it also didn't start.... > Have you looked > are the output at a millisecond, or so, from the start to see if it is still > running? Yes, it is. Once kicked off, it doesn't stop. But when you know the trick... Thanks, 73 Alberto I2PHD