X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from host.roblinphoto.com ([72.52.218.78] verified) by logan.com (CommuniGate Pro SMTP 5.2.8) with ESMTPS id 3197375 for flyrotary@lancaironline.net; Thu, 02 Oct 2008 21:23:52 -0400 Received-SPF: pass receiver=logan.com; client-ip=72.52.218.78; envelope-from=bob@bob-white.com Received: from c-68-35-160-229.hsd1.nm.comcast.net ([68.35.160.229]:58907 helo=quail) by host.roblinphoto.com with esmtpa (Exim 4.69) (envelope-from ) id 1KlZNz-0002UQ-L3; Thu, 02 Oct 2008 19:23:16 -0600 Date: Thu, 2 Oct 2008 19:17:31 -0600 From: Bob White To: "Rotary motors in aircraft" Cc: "Richard Sohn" Subject: Re: [FlyRotary] Re: Coil trigger signal Message-Id: <20081002191731.32a5ea2d.bob@bob-white.com> In-Reply-To: References: X-Mailer: Sylpheed 2.6.0beta1 (GTK+ 2.12.0; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host.roblinphoto.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - bob-white.com Thanks Richard, That's what I needed to know. The tach works with an input pulse down to 6 volts, then quits, so I'm going to need a little amplification to get it to work properly. Bob W. On Thu, 2 Oct 2008 19:23:31 -0500 "Richard Sohn" wrote: > Bob, > > the coil trigger signal is supposed to be a square pulse of 5V amplitude and > 2ms duration. I used this on the single rotor at one time, and it worked > great. > FWIW. > > Richard Sohn > N2071U > > ----- Original Message ----- > From: "Bob White" > To: "Rotary motors in aircraft" > Sent: Thursday, October 02, 2008 3:39 PM > Subject: [FlyRotary] Coil trigger signal > > > > Tracy is on vacation for a while and I need to find out what the coil > > trigger pulse signal looks like. Anyone know? > > > > This is in reference to recalibrating John Downing's tachometer. I > > will publish what I've done as soon as I have it working. > > > > Bob W. > > > > -- > > N93BD - Rotary Powered BD-4 - http://www.bob-white.com > > 3.8 Hours Total Time and holding > > Cables for your rotary installation - http://roblinstores.com/cables/ > > > > -- > > Homepage: http://www.flyrotary.com/ > > Archive and UnSub: > > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -------------------------------------------------------------------------------- > > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.173 / Virus Database: 270.7.5/1703 - Release Date: 10/2/2008 > 7:46 AM > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- N93BD - Rotary Powered BD-4 - http://www.bob-white.com 3.8 Hours Total Time and holding Cables for your rotary installation - http://roblinstores.com/cables/