---- START NEW MESSAGE --- Received: from cherry.ease.lsoft.com [209.119.0.109] by dpmail10.doteasy.com with ESMTP (SMTPD32-8.05) id AFFBA580068; Fri, 30 Jan 2004 13:43:23 -0800 Received: from PEAR.EASE.LSOFT.COM (209.119.0.19) by cherry.ease.lsoft.com (LSMTP for Digital Unix v1.1b) with SMTP id <8.00CC53E9@cherry.ease.lsoft.com>; Fri, 30 Jan 2004 16:01:18 -0500 Received: from MITVMA.MIT.EDU by MITVMA.MIT.EDU (LISTSERV-TCP/IP release 1.8e) with spool id 5699 for PICLIST@MITVMA.MIT.EDU; Fri, 30 Jan 2004 16:01:12 -0500 Received: from MITVMA (NJE origin SMTP@MITVMA) by MITVMA.MIT.EDU (LMail V1.2d/1.8d) with BSMTP id 0132; Fri, 30 Jan 2004 16:00:19 -0500 Received: from smtp1.actcom.co.il [192.114.47.13] by mitvma.mit.edu (IBM VM SMTP Level 430) via TCP with ESMTP ; Fri, 30 Jan 2004 16:00:18 EST X-Comment: mitvma.mit.edu: Mail was sent by smtp1.actcom.co.il Received: from plp.plp.home.org (p26.ta5.actcom.co.il [192.115.23.93]) by smtp1.actcom.co.il (8.12.11/8.12.11) with ESMTP id i0UL0AUp011247 for ; Fri, 30 Jan 2004 23:00:17 +0200 Received: from plp.plp.home.org (plp.plp.home.org [192.168.0.1]) by plp.plp.home.org (Postfix) with ESMTP id A06CFA4802 for ; Fri, 30 Jan 2004 22:56:40 +0200 (IST) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Message-ID: Date: Fri, 30 Jan 2004 22:56:40 +0200 Reply-To: pic microcontroller discussion list Sender: pic microcontroller discussion list From: "Peter L. Peres" Subject: [EE]: DIAC question To: PICLIST@MITVMA.MIT.EDU Precedence: list X-RCPT-TO: Status: U X-UIDL: 371856575 > I need a 10v diac for a circuit I want to test and cant get one. can I > use 2 reverse zeners in parallel as a diac? No, but you can use a thyristor, a zener, and a rectifier bridge to replace one. Otherwise, there is a number of combinations of CMOS logic, 555 chips, and bipolar transistors that will do what you need when properly applied. Peter -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body .