Return-Path: Received: (qmail 10849 invoked from network); 16 Sep 2002 15:55:46 -0000 Received: from murphys.services.quay.plus.net (212.159.14.225) by mailstore with SMTP; 16 Sep 2002 15:55:46 -0000 Received: (qmail 6934 invoked from network); 16 Sep 2002 15:55:48 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from post.thorcom.com (193.82.116.70) by murphys.services.quay.plus.net with SMTP; 16 Sep 2002 15:55:47 -0000 X-SQ: A X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 4.10) id 17qyD0-0006nM-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 16 Sep 2002 16:54:46 +0100 Received: from [193.82.116.10] (helo=public1.thorcom.com ident=[y+jSNNt1Xdj6jl3DGXBkaqefetinMDl4]) by post.thorcom.com with esmtp (Exim 4.10) id 17qyD0-0006n4-01 for rsgb_lf_group@blacksheep.org; Mon, 16 Sep 2002 16:54:46 +0100 Received: from cmsrelay01.mx.net ([165.212.11.110] helo=cmsoutbound.mx.net) by public1.thorcom.com with smtp (Exim 3.33 #1) id 17qy7v-00061p-00 for rsgb_lf_group@blacksheep.org; Mon, 16 Sep 2002 16:49:31 +0100 Received: from uadvg130.cms.usa.net (HELO cmsoutbound.mx.net) (165.212.11.130) by cmsoutbound.mx.net with SMTP; 16 Sep 2002 15:49:03 -0000 Received: from usa.net [32.97.110.67] by uadvg130.cms.usa.net (ASMTP/dibene@usa.net) via mtad (CM.1201.1.04A) with ESMTP id 905giPPxD0244M30; Mon, 16 Sep 2002 15:49:04 GMT Message-ID: <3D85FD53.7090901@usa.net> Date: Mon, 16 Sep 2002 17:48:35 +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: <3A5B37BB.11936.1878C3D@localhost> Subject: LF: PSpice question Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=0.0 required=5.0tests=noneversion=2.31 Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Hello group, any PSpice guru amongst you ? I am just starting to play with this simulation tool and have a basic question. I modeled a simple oscillator, with a 2N2222 and some passive components. If I simulate it with Electronics Workbench it happily oscillates. With PSpice it doesn't, no matter how I change the feedback. I suspect that some noise source should be added to trigger the oscillation, but don't know how, nor I am sure that this is indeed true. Any help is gratefully accepted, thanks. 73 Alberto I2PHD