Today's Message Index:
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1. 06:13 AM - Re: Ducati ignition modules for the Rotax 912 (Robert L. Nuckolls, III)
2. 06:23 AM - Re: AMP Crimper Refurb? (Robert L. Nuckolls, III)
3. 06:33 AM - Re: AMP Crimper Refurb? (Robert L. Nuckolls, III)
4. 08:05 AM - Re: Failed brownout battery experiment (nuckollsr)
5. 08:53 AM - Re: AMP Crimper Refurb? (Jeff Luckey)
6. 11:32 AM - Re: AMP Crimper Refurb? (Robert L. Nuckolls, III)
7. 05:33 PM - Re: Failed brownout battery experiment (user9253)
8. 05:40 PM - Re: Failed brownout battery experiment (Eric M. Jones)
Message 1
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| Subject: | Re: Ducati ignition modules for the Rotax 912 |
At 06:58 PM 8/25/2013, you wrote:
>Bob, Lockwood returned the defective modules along with the new ones
>and when my customer said he was going to pitch them if I didn't
>want them I took both. If you would like to examine them I'd be
>happy to mail them out to you.
>
>Rick Girard
>do not archive
>
>It isn't necessary to have relatives in Kansas City in order to be unhappy.
> - Groucho Marx
>
>
I think these are potted and anyhow, I don't
have any knowledge of or means to test
functionality . . . but thanks for the offer
my friend.
I've been OFF List pretty much for the
last 10 days, son Zach and Dr. Dee have
been testing their entrepreneurial wings
in a shaved ice/cotton candy business that
caters to parties, festivals, and other
public events.
I'm the roustabout, gofer and general
maintenance for the crew. Interesting
business. Two week ends ago, we did a
"Old Settlers Day" event in Mulvane, KS.
Perhaps 5000 folks circulated through
the area. Did a land-office business.
What's more, the promoters only charged
$25 to be there . . . to pay for really
nice AC mains available at the set-up site.
Did the Black Top Nationals event in
Wichita this past weekend. They charged
$500 for access to what was claimed would
be 100,000+ visitors and we had to burn
30 gallons of gas and lug a generator.
(I've figured out a way to quiet those
little one-lung put-puts down . . .
ESSENTIAL to personal health, safety
and mental stability!). Made some money
but not nearly commensurate with the
expenses and $time$ for all who
participated.
It's been an interesting peek into the
variables of merchandising. That old saw
about 'build a better mousetrap' has
lured many a talented individual to
disappointed outcomes . . . this ain't
necessarily rocket science but it IS
a technical and psychological art
supported with real SWEAT equity.
I'll stick with herding electrons and
thrashing bytes . . . much more
predictable, lower capital investment
and risks. But I'm pleased to be of
service to the family in this new endeavor
and intently interested in watching
their deliberations and decisions in the
practice of spontaneous order that is so
essential to all successful endeavors.
Anyhow, back at the keyboard for a couple
of weeks . . .
Bob . . .
Message 2
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| Subject: | Re: AMP Crimper Refurb? |
At 05:25 PM 8/24/2013, you wrote:
>I just ran across an old, rusty AMP 59824-1 crimping tool. Its
>action is kinda gummed-up and needs a little TLC.
>
>Can someone recommend a Tool Repair company that could put this tool
>back into working condition for a reasonable price?
>
>Or, maybe an exploded-view drawing. I might attempt to fix it
>myself if I had a little counseling & guidance ;)
>
>TIA,
>
>-Jeff
Take care lest you put more $labor$ into
a clean-up effort than it takes to buy one
in good working condition. The only CRITICAL
functions are die closures, smoothness of the
die pressure areas and good order in the
ratchet mechanism.
Try dousing the thing with WD40 and then
'work' the tool. If it does good crimps,
then perhaps the best return on investment
is to leave it's 'character' intact and
chalk it up to a hard but not debilitating
life.
These tools probably don't have an official
refurbishment manual . . . a manual for
this kind of tool would probably be limited to
disassemble, clean, reassemble and lubricate.
I doubt that even the factory offers refurb
services any more . . . the 'factory' is
probably off shore and the costs of down
time, shipping, overhaul labor is many times
greater than any repair parts that might be
needed.
I'd oil it, blow it out, see if it produces
attractive crimps and either (1) add it
to the tool box or (2) offer a respectful
trip into the recyclable steel bin.
Bob . . .
Message 3
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| Subject: | Re: AMP Crimper Refurb? |
At 12:45 AM 8/25/2013, you wrote:
>googled AMP 59824-1 crimping tool. and lookie at what I found
>If this attachment doesn't come thru to you send me a private e-mail
>and I'll send it to you By the way this is PDF so it can be slow to load
>Dick
>
>In a message dated 8/24/2013 5:28:54 P.M. Central Daylight Time,
>jluckey@pacbell.net writes:
>AMP 59824-1 crimping tool.
COOL! If anyone would offer the information,
it would have to be AMP. Let us know what you've
learned from your endeavors with this tool. . .
especially the availability and price of any
parts you may decide to replace.
I sent an AMP tool back to a factory refurb
service back about 1965 . . . my $25 t-head
refugee from a salvage yard cost $75 to 'refurbish'
but I have no idea what, if any, parts were replaced
I still have the tool. It would be interesting to
know what the same exchange of fees for goods
and services would cost today.
You may have an opportunity to add to universe
of knowledge here . . .
Bob . . .
Message 4
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| Subject: | Re: Failed brownout battery experiment |
This has been an interesting thread from the IT perspective . . . not all posts
to the thread showed up in my mailbox but did appear in the matronics browser
app for list access. I didn't get Eric's corrected drawing link . . .
In this particular discussion for supplying power t the Dynon's external backup
input pin, we're told that this pin is loaded ONLY IF adequate power is not available
from the normal power input pin -OR- an internal battery. In this case,
DS1 could be eliminated (open) and DS3 replaced with a short.
If this circuit were used to buffer the one and only power input pin to
a brownout sensitive appliance, then a path for steady state power at normal operating
currents is needed . . . you couldn't power the device continuously through
the DS2/R1 pathway.
Many power resistors have 'pulsed' current ratings that can be quite large compared
to the steady state dissipation for the device . . . but it's highly dependent
upon THERMAL connection between the resistive element, thermal mass and
ambient. I've studied some wire-wound resistors that were pretty disappointing
for surge rating . . . others that were happily capable of considerable short-term
abuse. You have to study the data sheets for the specific products. Generally
speaking, resistors with flat surfaces that bolt to a chassis (thermal
mass) will have pretty good pulse ratings . . . wire leaded devices that hang
out in the breeze not so good.
The data sheet for these devices
http://tinyurl.com/msjo2va
. . . says you can hit them with 2x rated power for 5 seconds so this resistor
would probably be fine as a 20W. At the same time, since we're not intending that
this circuit charge rapidly in response to a starter-push button, the charging
resistance could probably be raised by a factor of 2 without affecting circuit
performance while reducing dissipated power by 75% in increasing capacitor
charging time. Since the design goal being considered is to support a piece
of equipment that has already been ON long enough to boot up and offer data,
then the increase in time to charge the brown-out support is not significant.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=407501#407501
Message 5
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| Subject: | Re: AMP Crimper Refurb? |
Based on Dick's finding the Instruction Sheet, I was then able to look-up t
he price of a Refurb Kit, ~$240 (ouch!).=0A=0ANow another question:- How
does this tool compare to the $40 crimpers that B&C sells?=0A=0ASome criter
ia:=0A1. I'm not using the tool in a production environment.- I'll probab
ly build & repair a couple of airplanes in my life time.=0A2. @ $40 per uni
t for the B&C tool, I could buy 6 of them for the cost of 1 refurbishment k
it=0A=0AI will follow Bob's suggestion, below, and report back.=0A=0A=0ATha
nks to Dick & Bob,=0A=0A-Jeff=0A=0A=0A=0A________________________________
=0A From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>=0ATo: a
eroelectric-list@matronics.com =0ASent: Monday, August 26, 2013 6:23 AM=0AS
ubject: Re: AeroElectric-List: AMP Crimper Refurb?=0A =0A=0A--> AeroElectri
c-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelect
ric.com>=0A=0AAt 05:25 PM 8/24/2013, you wrote:=0A=0A> I just ran across an
old, rusty AMP 59824-1 crimping tool.- Its action is kinda gummed-up and
needs a little TLC.=0A> =0A> Can someone recommend a Tool Repair company t
hat could put this tool back into working condition for a reasonable price?
=0A> =0A> Or, maybe an exploded-view drawing.- I might attempt to fix it
myself if I had a little counseling & guidance ;)=0A> =0A> TIA,=0A> =0A> -J
eff=0A=0A- Take care lest you put more $labor$ into=0A- a clean-up ef
fort than it takes to buy one=0A- in good working condition. The only CR
ITICAL=0A- functions are die closures, smoothness of the=0A- die pres
sure areas and good order in the=0A- ratchet mechanism.=0A=0A- Try do
using the thing with WD40 and then=0A- 'work' the tool. If it does good
crimps,=0A- then perhaps the best return on investment=0A- is to leav
e it's 'character' intact and=0A- chalk it up to a hard but not debilita
ting=0A- life.=0A=0A- These tools probably don't have an official=0A
- refurbishment manual . . . a manual for=0A- this kind of tool would
probably be limited to=0A- disassemble, clean, reassemble and lubricate
.=0A- I doubt that even the factory offers refurb=0A- services any mo
re . . . the 'factory' is=0A- probably off shore and the costs of down
=0A- time, shipping, overhaul labor is many times=0A- greater than an
y repair parts that might be=0A- needed.=0A=0A- I'd oil it, blow it o
ut, see if it produces=0A- attractive crimps and either (1) add it=0A-
to the tool box or (2) offer a respectful=0A- trip into the recyclable
=========================0A
- - - - - - - - - - - - - -Matt Dralle, List Adm
=====
Message 6
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| Subject: | Re: AMP Crimper Refurb? |
At 10:51 AM 8/26/2013, you wrote:
>Based on Dick's finding the Instruction Sheet, I was then able to
>look-up the price of a Refurb Kit, ~$240 (ouch!).
>
>Now another question: How does this tool compare to the $40
>crimpers that B&C sells?
See http://tinyurl.com/kfk6jss
Bob . . .
Message 7
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| Subject: | Re: Failed brownout battery experiment |
It turns out that it really is a "Failed brownout battery experiment". After flying
for several hours and starting the engine several times, there no longer
is any brownout protection because (I assume) the 4 AA batteries have run down.
I checked the batteries (no load) with a voltmeter: 1.4 volts each. I removed
the AA batteries from the airplane so they will not cause any problems.
I will await delivery of the DC-DC voltage booster that I ordered from eBay.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=407547#407547
Message 8
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| Subject: | Re: Failed brownout battery experiment |
I just placed a Digikey order for the parts and will build a prototype. Stay tuned.
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=407548#407548
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