X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc11.worldnet.att.net ([204.127.131.115] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 997821 for flyrotary@lancaironline.net; Sat, 25 Feb 2006 10:59:21 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.131.115; envelope-from=keltro@att.net Received: from mwebmail24.att.net ([204.127.135.63]) by worldnet.att.net (mtiwmhc11) with SMTP id <20060225155812111004aphre>; Sat, 25 Feb 2006 15:58:12 +0000 Received: from [64.136.27.229] by mwebmail24.att.net; Sat, 25 Feb 2006 15:58:11 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Fire Detector Unit Date: Sat, 25 Feb 2006 15:58:11 +0000 Message-Id: <022520061558.1243.44007E9300055E06000004DB2160376223019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Nov 10 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_1243_1140883091_0" --NextPart_Webmail_9m3u9jl4l_1243_1140883091_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit All, This appears to be the same product that Mark has......Wonder why such a price difference !! -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from Bob White : -------------- > On Sat, 25 Feb 2006 07:04:37 -0500 > Chad Robinson wrote: > > > Tracy Hallock wrote: > > > > > > After seeing Mark's demonstration, I was pretty impressed, so I did a > > > search on the internet for similar products. The link below looked > > > promising: > > > > > > http://www.georgejenson.com/rv7.php > > > > > > They include a board and the detector for $72. Unfortunately, I am too > > > far off from needing this yet, but someone else might like to experiment. > > > > Tracy, did you mean to include this link as opposed to the one above? > > http://www.acroname.com/robotics/parts/R67-UVTRON.html > > > > This is a good way to go if you're serious about using this detector. It runs > > on 10-30VDC, and you can get a project box from Radio Shack for a few bucks > > that will fit it. > > > > Note that if you want to use this, you will need some way to indicate its > > output. A good way would be a 12V relay, light, and buzzer, also from Radio > > Shack. You'd hook the relay to "output pin 3 - Open Collector Output", and use > > it to drive the indicator light (or LED) and the buzzer. Make sure the coil > > rating of the relay you get doesn't exceed 100mA at 12V (coil resistance 120 > > ohms max). > > > *** Make that 120 ohms MIN. More ohms, less current. :) > > Bob W. > > > > > Finally, the output of this thing is a very short pulse. The spec sheet for > > the driver circuit says you can add a capacitor at a spot on the circuit > > board. Again, Radio Shack sells capacitors. A 1uF value across the Cx > > terminals will make the output pulse for 1 second at a time. Don't forget to > > jumper the "background cancel level" terminals, too. Looks like you'd want to > > use position 3 - they label this "general use". You can experiment with a > > different slot if it's falsely triggering. > > > > Sounds like a lot of hookup work, but you could probably do it (minus wiring > > and installing it) in 20 minutes. I'm just trying to be detailed. =) > > > > > http://www.bob-white.com > N93BD - Rotary Powered BD-4 (first engine start 1/7/06) > Custom Cables for your rotary installation - > http://www.roblinphoto.com/shop/ --NextPart_Webmail_9m3u9jl4l_1243_1140883091_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

All,

This appears to be the same product that Mark has......Wonder why such a

price difference !!

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from Bob White <rlwhite@comcast.net>: --------------

> On Sat, 25 Feb 2006 07:04:37 -0500
> Chad Robinson wrote:
>
> > Tracy Hallock wrote:
> > >
> > > After seeing Mark's demonstration, I was pretty impressed, so I did a
> > > search on the internet for similar products. The link below looked
> > > promising:
> > >
> > > http://www.georgejenson.com/rv7.php
> > >
> > > They include a board and the detector for $72. Unfortunately, I am too
> > > far off from needing this yet, but someone else might like to experiment.
> >
> > Tracy, did you mean to include this link as opposed to the one above?
> > http://www.acroname.com/robotics/parts/R67-UVTRON.html
> >
> > This is a good way to go if you're serious about using this detector. It runs
> > on 10-30VDC, and you can get a project box from Radio Shack for a few bucks
> > that will fit it.
> >
> > Note that if you want to use this, you will need some way to indicate its
> > output. A good way would be a 12V relay, light, and buzzer, also from Radio
> > Shack. You'd hook the relay to "output pin 3 - Open Collector Output", and use
> > it to drive the indicator light (or LED) and the buzzer. Make sure the coil
> > rating of the relay you get doesn't exceed 100mA at 12V (coil resistance 120
> > ohms max).
>
>
> *** Make that 120 ohms MIN. More ohms, less current. :)
>
> Bob W.
>

> >
> > Finally, the output of this thing is a very short pulse. The spec sheet for
> > the driver circuit says you can add a capacitor at a spot on the circuit
> > board. Again, Radio Shack sells capacitors. A 1uF value across the Cx
> > terminals will make the output pulse for 1 second at a time. Don't forget to
> > jumper the "background cancel level" terminals, too. Looks like you'd want to
> > use position 3 - they label this "general use". You can experiment with a
> > different slot if it's falsely triggering.
> >
> > Sounds like a lot of hookup work, but you could probably do it (minus wiring
> > and installing it) in 20 minutes. I'm just trying to be detailed. =)
> >
>
>
> http://www.bob-white.com
> N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
> Custom Cables for your rotary installation -
> http://www.roblinphoto.com/shop/

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