Today's Message Index:
----------------------
0. 10:12 PM - Wiki... (Matt Dralle)
1. 05:09 AM - Re: Transistorture (Robert L. Nuckolls, III)
2. 05:09 AM - Re: 'Scope offer from Saelig (Robert L. Nuckolls, III)
3. 05:33 AM - Re: Transistorture (Fiveonepw@aol.com)
4. 06:44 AM - Re: Transistorture (Robert L. Nuckolls, III)
5. 08:00 AM - Re: 'Scope offer from Saelig (Joe Garner)
6. 04:47 PM - Re: Transistorture (Fiveonepw@aol.com)
7. 08:59 PM - Fw: GPS Antenna Test (Eric Newton)
8. 11:27 PM - Re: GTX327 power switching (Carl Morgan)
Message 0
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Dear Listers,
I added a new Wiki web site to the Matronics Email List features earlier this year. What's a Wiki, you ask? Well, here's the Wikipedia (http://en.wikipedia.org/wiki/Wiki) definition:
A wiki (IPA: [ w .ki ] <WICK-ee> or [ wi .ki ] <WEE-kee>) is a type of Web site
that allows the visitors themselves to easily add, remove, and otherwise edit
and change some available content, sometimes without the need for registration.
This ease of interaction and operation makes a wiki an effective tool for
collaborative authoring. The term wiki also can refer to the collaborative software
itself (wiki engine) that facilitates the operation of such a Web site,
or to certain specific wiki sites, including the computer science site (an original
wiki), WikiWikiWeb, and on-line encyclopedias such as Wikipedia.
Under the Matronics Email List Moniker, there is now a very nice List-specific
Wiki available! It a place for Listers to put articles about any aviation topic
that suits them. The purpose is to provide what the mailing lists do not:
structure and persistence. The mailing lists are a fantastic resource to ask
a question and get good (and bad and funny and annoying) answers. But once the
question is asked and answered it is not in front of the List anymore. If a
new person subscribes the next day, he/she does not see that information unless
he/she goes to the trouble to search the archives, a hit or miss proposition.
The result is that the same thread of conversation gets created and/or revisited.
There are several things that happen as a result:
1. The person gets his or her question answered;
2. The information gets better as more people think about and answer the question;
3. The people who have seen the same question asked and answered get annoyed
at seeing the same things over and over and over and ...
So this is where the Wiki comes in. You know what questions you wanted answered.
You may have asked or answered the question. You know the information is useful.
So you put the information here, in the Matronics Email List Wiki!
It doesn't matter that this information is 100% complete or correct. Just writing
something creates a placeholder and makes useful information available immediately.
It has the same immediacy as the mailing list but it has persistence
and structure.
But what if the information is incomplete or incorrect? No problem! Anyone else
coming along can edit the article! If I write something and you discover something
I have left out or stated incorrectly, you can fix it right then!
So let's begin and make this the place for information about building, flying,
maintaining, and understanding our airplanes.
But what about whether something is "appropriate" or not? Don't worry. Write
it down. Let the reader determine whether or not it is appropriate. If it is,
he/she will read it. If it isn't, he/she won't. It's as simple as that.
And when you do write that article you won't have to worry about whether some editor
is going to decide whether or not to print it in a newsletter or whether
the webmaster will have time to put it up on the web page.
The last question I hear brewing out there is: if anyone can post anything, won't
this just become a mass of garbage? Surprisingly, the answer is a resounding
no. If you want proof, go visit the Wikipedia, a free-to-everyone encyclopedia
written by whoever wants to write articles. The articles there are as good
as anything I have read anywhere and anyone can add anything anytime they want
to.
So don't hesitate. Write it down. Put it here. It will never hurt anyone. The
more information we get here, the more useful it will become to other people
and the more information they will put here for YOU to use.
Here's the URL to start (there are lots more bured under this starting place):
http://www.matronics.com/wiki/index.php/Matronics:Community_Portal
But please don't forget that this Wiki and all of the other Matronics Email List
features are supported solely by YOUR Contributions!! November is List Fund
Raiser month and there are lots of Free Gifts to be had with your qualifying
Contribution. Please make a Contribution to support the continued operation and
upgrade of these great services!!! Thank you!
http://www.matronics.com/contribution
Matt Dralle
Matronics Email List Administrator
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Transistorture |
Who did you talk to there? Was it on phone or by e-mail.
We could take a pretty good guess at what's being suggested
but it would be best to have a more pointed conversation with
them. If you can help me contact the right person, I'll see
if I can get a better definition of the task.
Bob . . .
At 06:39 PM 11/9/2006 -0500, you wrote:
>Howdy those-that-know-
>
>I am (as usual) trying something I know little about, but he'p me out
>here, purty please!
>
>Goal: light an annunciator LED when Trutrak servos are OFF. This is a
>reminder that Digiflight is not flying the airplane. Normal condition is
>A/P on for normal flight with LED OFF.
>
>Suggestion from Trutrak: connect NPN Darlington transistor base via a 10K
>resistor to servo torque line on servo connector (pin 6- common to pin 4
>or 16 on back of Digitrak depending on pitch or roll servo) . Connect 12v
>to annunciator LED+, LED ground to emitter and use transistor collector to
>ground lamp. If I got this right, the signal from the servo turns
>transistor on, completing LED circuit, LED comes ON.
>
>Problem is, Trutrak offered no guidance beyond "Darlington NPN transistor"
>and I have googled, Digikeyed & Mousered trying to find an appropriate
>transistor. The values are mystifying and require much research &
>education to demystify. Best quess is this one in a TO-92 package:
>
><http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=488&M=2N6426G>http://rocky.digikey.com/scripts/ProductInfo.dll?Site=US&V=488&M=2N6426G
>
>Supposing this is a good choice to turn the LED ON, can I turn the LED OFF
>by using this transistor circuit to turn on a small relay and use relay
>N.C. contacts connected to LED ground to turn off the LED when servo is
>energized, and if so, what would be an appropriate relay?
>
>Or is there a better way to do this?
>
>I humble myself before y'all but THANKS just the same for any advice!
>
>Mark Phillips
>
>www.aeroelectric.com
><http://www.buildersbooks.com>www.buildersbooks.com
><http://www.matronics.com/contribution>http://www.matronics.com/contribution
><http://www.matronics.com/Navigator?AeroElectric-List>http://www.matronics.com/Navigator?AeroElectric-List
>
>
>-- incoming mail is certified Virus Free.
>Checked by AVG Anti-Virus.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 'Scope offer from Saelig |
At 11:21 AM 11/9/2006 -0800, you wrote:
>
>Hi Bob,
>
>Just wondering what you think of the 'scope after a few months?
>
>Thanks, Joe
I've only used it a few times for real (other
than playing) but so far, it performs as advertised.
For a two channel, digital storage scope in color,
the $399 regular selling price is an excellent value.
Bob . . .
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Transistorture |
In a message dated 11/10/2006 7:16:37 AM Central Standard Time,
nuckollsr@cox.net writes:
Who did you talk to there? Was it on phone or by e-mail.
>>>
Request was made by phone to John (dangit, do not recall last name) and
attached .pdf sent via e-mail in reply. Will monitor list to see if attachment
gets through, if not, will e-mail direct.
Thanks!
Mark do not archive
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Transistorture |
At 08:32 AM 11/10/2006 -0500, you wrote:
>In a message dated 11/10/2006 7:16:37 AM Central Standard Time,
>nuckollsr@cox.net writes:
>Who did you talk to there? Was it on phone or by e-mail.
>
> >>>
>Request was made by phone to John (dangit, do not recall last name) and
>attached .pdf sent via e-mail in reply. Will monitor list to see if
>attachment gets through, if not, will e-mail direct.
>
>Thanks!
>Mark do not archive
The schematic helped. See attached .pdf
All parts are available from Radio Shack. You can wire
two ways. One version turns LED ON when servo signal high,
the other turns it OFF.
Bob . . .
---------------------------------------------------------
< What is so wonderful about scientific truth...is that >
< the authority which determines whether there can be >
< debate or not does not reside in some fraternity of >
< scientists; nor is it divine. The authority rests >
< with experiment. >
< --Lawrence M. Krauss >
---------------------------------------------------------
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 'Scope offer from Saelig |
Thanks Bob,
We're thinking of getting some of these where I work for field techs.
Might get one to try out... Lots cheaper than the Teks, or the Fluke
196c that I have :}
/Joe
Robert L. Nuckolls, III wrote:
> <nuckollsr@cox.net>
>
> At 11:21 AM 11/9/2006 -0800, you wrote:
>
>> <jgarner@dslextreme.com>
>>
>> Hi Bob,
>>
>> Just wondering what you think of the 'scope after a few months?
>>
>> Thanks, Joe
>
>
> I've only used it a few times for real (other
> than playing) but so far, it performs as advertised.
> For a two channel, digital storage scope in color,
> the $399 regular selling price is an excellent value.
>
> Bob . . .
>
>
>
>
>
>
>
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Joe Garner IASEL-RV 6@OAK
jgarner(at)elelink.org |
jgarner(at)dslextreme.com .______(o)______.
kc6utr(at)w6pw www.elelink.org / \
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Transistorture |
In a message dated 11/10/2006 8:47:51 AM Central Standard Time,
nuckollsr@cox.net writes:
The schematic helped. See attached .pdf
Amazing- once again you have taught and assisted beyond all expectations-
circuit B puts LED supply to ground potential for the big turn off! This is too
cool- lots of uses for this, time ta git busy (gotta figure out packaging)...
8-)
THANK YOU SIR!!!
Mark Phillips do not archive
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Fw: GPS Antenna Test |
I'm building a Bearhawk which has a tube and fabric fuselage. I have
been thinking about hiding my GPS Antenna under the fabric covering on
top of the Fuselage, just aft of the windshield channel.
I was worried about whether or not the GPS antenna would receive the
signal through the fabric with the Poly Spray which reflects UV rays
applied. So I devised a little experiment. I have published the
results on my website at this page:
http://mybearhawk.com/finish/gpstest.html
Enjoy,
Eric Newton - Long Beach, MS
BH #682
http://mybearhawk.com
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | GTX327 power switching |
Hi,
Just working through our GTX327 connections, I can confirm:
If pin 15 is connected and pin 1 left unconnected, on 'power up' the box
does not switch on until a manual on/standby button is selected
If pin 15 and pin 1 are connected, on 'power up' it automatically switches
on (to standby).
What I would like is the 'in between option', ie. it remembers if it was on
or off when power was removed from the supply lines and returns to that
state next time power is provided.
Anyone got that situation working? Am I just being too specific?
Carl
--
ZK-VII - New Zealand - http://www.rvproject.gen.nz/
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com]On Behalf Of D Fritz
Sent: Friday, 3 November 2006 9:09 a.m.
To: aeroelectric-list@matronics.com
Subject: Re: AeroElectric-List: GTX327 power switching
Erich,
I have the same transponder and it does the same thing yours does. I've
looked into it a little bit, but am deployed so I can't look at the wiring
on my unit. There appears to be a pin on the connector that, if powered, is
set up to have the unit power on automatically in the same state as last
used when the avionics master is turned on (or power applied to the
endurance bus in your case). My guess is that this pin is jumpered to the
bus power in my harness, I intend to check when I return. Take a look at
figure B4 in the installation manual. (Here's a link to Andy Plunket's
Glasair website with an install manual:
http://glasairproject.com/docs/Garmin327im.pdf)
Dan Fritz
--
No virus found in this outgoing message.
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|