Today's Message Index:
----------------------
1. 06:32 AM - Re: The hardware side (checkn6)
2. 06:32 AM - Re: OT but electron related, I hate it when that happens! LOL (checkn6)
3. 06:41 AM - Re: OT but electron related, I hate it when that happens! LOL (checkn6)
4. 06:44 AM - Re: Re: Bench 24 volt battery / power supply (Robert L. Nuckolls, III)
5. 07:08 AM - Re: Re: The hardware side (Robert L. Nuckolls, III)
6. 09:15 AM - Re: Re: The hardware side (Jeff Luckey)
7. 02:32 PM - Re: Re: The hardware side (Robert L. Nuckolls, III)
8. 08:10 PM - Re: OT but electron related, I hate it when that happens! (William Curtis)
9. 08:18 PM - Re: Re: The hardware side (Robert L. Nuckolls, III)
10. 08:24 PM - Re: Re: The hardware side (Dj Merrill)
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Subject: | Re: The hardware side |
OK, great information, thanks guys. As an aside I should have mentioned that I
do have Bob's book and have been a follower on this list for quite some time.
My wife thinks I should put a small Jesus like statuette of Bob up on the fireplace
. . . te he he. I think I have seen every page on the Aeroelectric web site
and have compiled a small book on my own of helpful hints and tips. I was
just looking for a school book type of reference to go through the finer details
of "acceptable" wiring/electronic installations.
Thanks again,
Chris
Challenger II
Sonex (underway)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=388156#388156
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Subject: | Re: OT but electron related, I hate it when that happens! |
LOL
Nope, I already have one built.
Thanks though.
Chris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=388157#388157
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Subject: | Re: OT but electron related, I hate it when that happens! |
LOL
Hi Bob,
Thanks for the reply. I did manage to find something similar (although I KNOW I
have that schematic somewhere!) that will work.
Sorry to have been so vague on what I was looking for but I actually have a couple
of small projects in mind, one was for a remote(ish) cabin with a 12V Dometic
RV type of fridge/freezer and the other was for a portable bi-pap machine
while camping but I think I have that sorted as well. Since it is OT I don't want
to bother anyone with it. Just hoping to hit someones memory and they would
point me to the device that I had seen before.
Thanks,
Chris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=388158#388158
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Subject: | Re: Bench 24 volt battery / power supply |
At 08:22 PM 11/16/2012, you wrote:
>
>ok -- had no idea it needed that kind of amperage to get going. I
>wonder how long it needs to draw 56 amps?
Like the incandescent lamp, the heater has
strong positive temperature coefficient of
resistance. Unlike the lamp which heats to
full temperature in a few hundred milliseconds,
the pitot tube takes perhaps 30 seconds to a
minute to get within 95% of it's terminal
temperature.
It only draws 56 amps for a second, 55 amps
for the next seconds, etc
Bob . . .
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Subject: | Re: The hardware side |
At 08:31 AM 11/17/2012, you wrote:
>
>OK, great information, thanks guys. As an aside I should have
>mentioned that I do have Bob's book and have been a follower on this
>list for quite some time. My wife thinks I should put a small Jesus
>like statuette of Bob up on the fireplace . . . te he he. I think I
>have seen every page on the Aeroelectric web site and have compiled
>a small book on my own of helpful hints and tips. I was just looking
>for a school book type of reference to go through the finer details
>of "acceptable" wiring/electronic installations.
Thank you for the endorsement. I'm pleased that
you find our collective efforts so useful.
You have correctly identified the largest hurdle
in the sharing of a practical technology. There's
the study of ingredients that go into recipes for
success, then a recitation of recipes that have
benefited from critical review and practice and
finally, the processes by which those recipes are
brought into useful fruition.
The ancients had guilds of craftsmen who took on promising
new members based on their aptitude, willingness and
perhaps "donations" from their fathers. Membership
in a guild was the shortest path to success in many
disciplines.
You've arrived at the stage where book learn'n needs
to be converted to successes. Your goal for discovery
of "acceptable" processes is certainly adequate to
most tasks. At the same time, we who don't know much
about airplanes are not smart enough to know when
it can't be done . . . so we go do it anyhow.
The study of what has gone before gives you foundation
but don't hesitate to toss a question to the List
for something different. I would further caution against
the notion that all which is published, particularly
by regulatory authority, is not golden.
Some years back, AC43-13 was in a state of revision
some dozen years overdue. The FAA sent a copy of the
proposed update to the EAA tech guru . . . his name
escapes me at the moment. He was invited to spread
the document around with an invitation to comment.
"Oh, by the way, you got 10 days."
I got a copy of chapter 11 and set out to study
the validity of it's latest version. 3-4 days
later, my review along with reviews of many other
EAA members was submitted to the authors.
Dead silence.
I think it was perhaps 18 months later that the latest
and greatest AC43-13 was published. It was much better
but was still sprinkled with toe stubbers in both practice
and technology.
So no matter what you read from any source, an
attitude of healthy skepticism is a good thing.
The best way to dispel any doubt is bring it
to the List where you'll find dozens of sharp
minds who have been-there-done-that on many
things but are not fearful of departure from
legacy process and technology.
As teachers and practitioners of the art, we
all share a quest to design and craft the
elegant solution. Your willingness to participate
in the quest goes to making it happen.
Bob . . .
P.S. It occurred to me some weeks ago that it
might be useful to compile a book of photographs.
Nice close-ups that showed "stuff" installed on
airplanes. Age of the machine or nature of the
devices not important. They say a picture is
worth many words and I agree. A sort of un-narrated
comic book of techniques would offer the neophyte
builders some level of confidence for drilling
that first hole.
Message 6
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Subject: | Re: The hardware side |
My comments are at the bottom after the PS...
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: Saturday, November 17, 2012 07:08
Subject: Re: AeroElectric-List: Re: The hardware side
<nuckolls.bob@aeroelectric.com>
At 08:31 AM 11/17/2012, you wrote:
>
>OK, great information, thanks guys. As an aside I should have
>mentioned that I do have Bob's book and have been a follower on this
>list for quite some time. My wife thinks I should put a small Jesus
>like statuette of Bob up on the fireplace . . . te he he. I think I
>have seen every page on the Aeroelectric web site and have compiled
>a small book on my own of helpful hints and tips. I was just looking
>for a school book type of reference to go through the finer details
>of "acceptable" wiring/electronic installations.
Thank you for the endorsement. I'm pleased that
you find our collective efforts so useful.
You have correctly identified the largest hurdle
in the sharing of a practical technology. There's
the study of ingredients that go into recipes for
success, then a recitation of recipes that have
benefited from critical review and practice and
finally, the processes by which those recipes are
brought into useful fruition.
The ancients had guilds of craftsmen who took on promising
new members based on their aptitude, willingness and
perhaps "donations" from their fathers. Membership
in a guild was the shortest path to success in many
disciplines.
You've arrived at the stage where book learn'n needs
to be converted to successes. Your goal for discovery
of "acceptable" processes is certainly adequate to
most tasks. At the same time, we who don't know much
about airplanes are not smart enough to know when
it can't be done . . . so we go do it anyhow.
The study of what has gone before gives you foundation
but don't hesitate to toss a question to the List
for something different. I would further caution against
the notion that all which is published, particularly
by regulatory authority, is not golden.
Some years back, AC43-13 was in a state of revision
some dozen years overdue. The FAA sent a copy of the
proposed update to the EAA tech guru . . . his name
escapes me at the moment. He was invited to spread
the document around with an invitation to comment.
"Oh, by the way, you got 10 days."
I got a copy of chapter 11 and set out to study
the validity of it's latest version. 3-4 days
later, my review along with reviews of many other
EAA members was submitted to the authors.
Dead silence.
I think it was perhaps 18 months later that the latest
and greatest AC43-13 was published. It was much better
but was still sprinkled with toe stubbers in both practice
and technology.
So no matter what you read from any source, an
attitude of healthy skepticism is a good thing.
The best way to dispel any doubt is bring it
to the List where you'll find dozens of sharp
minds who have been-there-done-that on many
things but are not fearful of departure from
legacy process and technology.
As teachers and practitioners of the art, we
all share a quest to design and craft the
elegant solution. Your willingness to participate
in the quest goes to making it happen.
Bob . . .
P.S. It occurred to me some weeks ago that it
might be useful to compile a book of photographs.
Nice close-ups that showed "stuff" installed on
airplanes. Age of the machine or nature of the
devices not important. They say a picture is
worth many words and I agree. A sort of un-narrated
comic book of techniques would offer the neophyte
builders some level of confidence for drilling
that first hole.
[Jeff Luckey]
Bob - you are so 20th century. In the above paragraph
replace Book w/ Website - and I agree whole heartedly -
a visual library would speak volumes without a word.
-----
No virus found in this message.
Checked by AVG - www.avg.com
Message 7
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Subject: | Re: The hardware side |
>
>
>[Jeff Luckey]
> Bob - you are so 20th century. In the above paragraph
> replace Book w/ Website - and I agree whole heartedly -
> a visual library would speak volumes without a word.
Ahh . . . but of course. That's what I meant. I sorta
started this effort when I built the website. I have
an archive of photos at:
http://tinyurl.com/b5o58uq
but it's really clumsy to access. You have to look
at every picture one at a time to see if it's of
interest.
There should be an html thumbnail page, perhaps 4
columns wide that shows each picture in brief.
Clicking the image of interest would get the reader
a blow up.
I've mulled over a software program that would automatically
generate the .html from a text list of jpg file names.
There might also be a click-to-read link for a description
of the photo contents. The text files would be read by the
search engines and cataloged. There might already be
a utility for generating such a page. Do any of you
HTML gurus know of one?
This might offer a mechanism for accepting photos from
virtually anyone showing the mechanics of a host of
tasks and getting them published with a minimum of
time.
Bob . . .
Message 8
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Subject: | Re: OT but electron related, I hate it when that happens! |
Chris, et al,
This may be what you were looking for. Below are links to the 12 volt
power system <http://wcurtis.nerv10.com/ehome/homedc.pdf> I have running
throughout my home. Where I live, It seem every time a tree falls, it
takes out a power line and there are frequent black and brown-outs that
have ruined a few of my home network devices. This is what led me to put
this system together but I also use it to power the electrical system of
the RV-10 and charge its batteries.
The system works so well and power disruptions were so frequent, that I
have expanded it and installed 5.5 x 2.1 mm 12v power
connectors<http://compare.ebay.com/like/130702153924?var=lv<yp=AllFix
edPriceItemTypes&var=sbar>in
each room of the house for 12 volt lighting and accessories.
The main fuse block in the basement feeds to additional fuse blocks on the
main floor and in the attic. These upper level fuse block feed rooms and
devices. The system powers ALL my home network (routers, NAS, WiFi
controllers, etc), home phones, cell phone chargers and other accessories.
For
the devices that require other than 12 volts, such as my cable modem that
requires 6 volts, I was able to get inexpensive DC Converter 12V Step down
to 9V and DC Converter12V Step down to
6V<http://www.ebay.com/itm/DC-Converter-12V-Step-down-to-6V-3A-15W-Power-Su
pply-Module-Waterproof-NEW-/170941285105?pt=LH_DefaultDomain_0&hash=ite
m27cce502f1>from
eBay.
See links below.
During a black or brown-out, the system immediately switches over to
battery power as the relay cuts power to the power
supply<http://www.ebay.com/itm/DC-Converter-12V-Step-down-to-6V-3A-15W-Powe
r-Supply-Module-Waterproof-NEW-/170941285105?pt=LH_DefaultDomain_0&hash
=item27cce502f1>and
disengages the power supply from the system.
This is the function of the AC relay. You do not want the power supply to
be on line to the battery when it is not producing power. Otherwise it
will cause additional drain on the system and may be damaged. When power
is restored, the relay is engaged providing power to the system and
recharging the U1 battery. No expensive diode or voltage drop concerns.
With the single generic U1 battery, all my devices will remain powered for
about 4 hours following a power disruption. When I engage the connection
to the Odyssey battery in the RV-10, power capacity increases to about 10
hours. I=92ve since determined that my cable Internet provider battery
backup is good for only about 8 hours so two U1 should be sufficient. Late
r
I plan to integrate a 100 watt solar panel to charge the battery so that
all my home network devices will be =93off the grid.=94 Hope this helps.
Schematic in pdf format with active links to products used:
http://wcurtis.nerv10.com/ehome/homedc.pdf
Schematic in jpeg format.
http://wcurtis.nerv10.com/ehome/homedc00.jpg
Basement 12 volt "power board."
http://wcurtis.nerv10.com/ehome/homedc01.jpg
12V DC 30A 360W Regulated Switching Power Supply
http://www.ebay.com/itm/New-12V-DC-30A-360W-Regulated-Switching-Power-Suppl
y-for-LED-Strip-Light-/180852147612?pt=LH_DefaultDomain_0&hash=item2a1b
a0c59c
5x 2.1mm DC Power Jack Socket Panel Connector
http://compare.ebay.com/like/130702153924?var=lv<yp=AllFixedPriceItem
Types&var=sbar
DC Converter 12V Step down to 6V
http://www.ebay.com/itm/DC-Converter-12V-Step-down-to-6V-3A-15W-Power-Suppl
y-Module-Waterproof-NEW-/170941285105?pt=LH_DefaultDomain_0&hash=item27
cce502f1
150W DC-ATX Output, 12V Input DC-DC PC Power Supply Board (for converting
PC to run on 12V DC)
http://www.ebay.com/itm/261063056565?ssPageName=STRK:MEWAX:IT&_trksid=p
3984.m1423.l2649
--
William
N40237 - http://wcurtis.nerv10.com/
Message 9
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Subject: | Re: The hardware side |
The text files would be read by the
search engines and cataloged. There might already be
a utility for generating such a page. Do any of you
HTML gurus know of one?
Got the grandkids to bed and did a little
net searching. Seems there's a bunch of 'em.
I'll try some . . . more or less at random . . .
unless anyone has some specific recommendations.
Bob . . .
Message 10
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Subject: | Re: The hardware side |
On 11/17/2012 5:31 PM, Robert L. Nuckolls, III wrote:
> I've mulled over a software program that would automatically
> generate the .html from a text list of jpg file names.
Not sure what OS your website is running, but I wrote a very
simple Bourne shell script to do this on my Linux based web server. The
script takes an argument of a list of jpg filenames (or just a wildcard,
like "*.jpg" if you want to include all jpg files in a directory). It
reads the list, creates a thumbnail version of the jpg using the
"convert" program (part of the ImageMagick open source suite), and
creates a simple index.html file consisting of the thumbnails, and
clicking on the thumbnails brings up the original full size image.
It is about as basic and non-fancy as you can get, but you are
welcome to use it if it might be helpful to you. Should be easy enough
to modify to create whatever formatting you wish in the html.
File is attached that includes the code.
-Dj
--
Dj Merrill - N1JOV
Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/
Glastar Flyer N866RH - http://deej.net/glastar/
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