Today's Message Index:
----------------------
1. 01:49 AM - AW: PVC vs Nylon Connectors (=?iso-8859-1?Q?Hans_J=F6rg_Frei?=)
2. 04:56 AM - connector suggestion sought (Alec Myers)
3. 06:34 AM - Re: connector suggestion sought (Kent or Jackie Ashton)
4. 06:55 AM - Re: connector suggestion sought (Robert L. Nuckolls, III)
5. 06:56 AM - Re: AW: PVC vs Nylon Connectors (Robert L. Nuckolls, III)
6. 07:11 AM - Re: connector suggestion sought (Alec Myers)
7. 08:07 AM - Re: Evolution of Wire (Correction) (Ken Ryan)
8. 08:42 AM - Re: Evolution of Wire (Correction) (Charlie England)
9. 08:51 AM - Re: connector suggestion sought (John Tipton)
10. 09:45 AM - Re: Evolution of Wire (Correction) (Ken Ryan)
11. 10:39 AM - Re: connector suggestion sought (Robert L. Nuckolls, III)
12. 11:07 AM - Re: Evolution of Wire (Correction) (Alec Myers)
13. 11:09 AM - Re: connector suggestion sought (Alec Myers)
14. 11:45 AM - Re: AW: PVC vs Nylon Connectors (=?utf-8?B?SGFucyBKw7ZyZyBGcmVp?=)
15. 11:50 AM - Re: Evolution of Wire (Correction) (Kent or Jackie Ashton)
16. 02:24 PM - Re: Evolution of Wire (Correction) (Robert L. Nuckolls, III)
Message 1
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Subject: | PVC vs Nylon Connectors |
Hallo Robert
I get every day about 10-20 e-mails from the aeroelectric list and I dont w
ant that.
how can I remove my e-mail address from this list?
Best regards
Hansj=F6rg
________________________________
Von: owner-aeroelectric-list-server@matronics.com <owner-aeroelectric-list-
server@matronics.com> im Auftrag von Robert L. Nuckolls, III <nuckolls.bob@
aeroelectric.com>
Gesendet: Sonntag, 29. April 2018 06:15
An: aeroelectric-list@matronics.com
Betreff: Re: AeroElectric-List: PVC vs Nylon Connectors
At 08:05 PM 4/28/2018, you wrote:
Barry,
A randomly selected list for your perusal:
http://www.nationalwire.com/pdf/cat01_elect_hookup_wire.pdf
MIL SPECIFICATION HOOK UP WIRE<http://www.nationalwire.com/pdf/cat01_elect_
hookup_wire.pdf>
www.nationalwire.com
mil specification hook up wire table of contents type description temp. ran
ge voltage page mil-dtl-16878/1 32-14 awg t.p.c. pvc insulated -54c to +105
c 600v 1-1
On the subject of Very Caustic Fumes: Close yourself up in a closet & burn
some Tefzel insulation. Report back (if able).
[Emacs!]
Yup, that's the stuff!
Bob . . .
Message 2
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Subject: | connector suggestion sought |
Someone on the list may have the right answer to this...
my instrument panels have a plastic overlay with built in electrostatic instrument
lighting. Each overlay has two power wires for the lights, that pass through
small holes in the aluminum instrument panel.
Im looking for a suggestion for a connector I can use for the power wires that
can be connected and disconnected on the outside of the aluminum panel (behind
the overlay) then fed through the small hole in the panel so the overlay sits
flush. A two pin molex .062 connector is slightly too big.
Any thoughts?
Message 3
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Subject: | Re: connector suggestion sought |
Bare D-sub pins (male and female) make a small connector. Cover with a bit of
shrink wrap.
https://www.jameco.com/z/205089-1-TE-Connectivity-Size-20-D-Subminiature-Contact-Pin_449342.html?CID=GOOG&gclid=EAIaIQobChMIm4vXgczf2gIVD1cMCh0elAMBEAQYASABEgJ3LPD_BwE
-Kent
> On Apr 29, 2018, at 7:54 AM, Alec Myers <alec@alecmyers.com> wrote:
>
>
> Someone on the list may have the right answer to this...
>
> my instrument panels have a plastic overlay with built in electrostatic instrument
lighting. Each overlay has two power wires for the lights, that pass through
small holes in the aluminum instrument panel.
>
> Im looking for a suggestion for a connector I can use for the power wires that
can be connected and disconnected on the outside of the aluminum panel (behind
the overlay) then fed through the small hole in the panel so the overlay sits
flush. A two pin molex .062 connector is slightly too big.
>
> Any thoughts?
>
>
>
>
Message 4
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Subject: | Re: connector suggestion sought |
At 08:33 AM 4/29/2018, you wrote:
><kjashton@vnet.net>
>
>Bare D-sub pins (male and female) make a small connector. Cover
>with a bit of shrink wrap.
>https://www.jameco.com/z/205089-1-TE-Connectivity-Size-20-D-Subminiature-Contact-Pin_449342.html?CID=GOOG&gclid=EAIaIQobChMIm4vXgczf2gIVD1cMCh0elAMBEAQYASABEgJ3LPD_BwE
>-Kent
Agreed . . .
Emacs!
How many pins do you need? I'll include them in your order.
Got some small i.d. shrink to throw in too. Do you
have a d-sub crimp tool?
Bob . . .
Message 5
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Subject: | Re: PVC vs Nylon Connectors |
At 03:47 AM 4/29/2018, you wrote:
>Hallo Robert
>
>I get every day about 10-20 e-mails from the
>aeroelectric list and I dont want that.
>
>how can I remove my e-mail address from this list?
>
>Best regards
>
>Hansj=F6rg
>
Go to Matronics.com/subscribe and tell
the system what lists you wish to keep
and which to discontinue.
Bob . . .
Message 6
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Subject: | Re: connector suggestion sought |
I have lots of pins, and the tooling, and lots of heat shrink. But I don
=99t think my avionics person will sign off on it. He=99s quite conser
vative.
Can I tell him it passes AC 43.13?
On Apr 29, 2018, at 09:54, Robert L. Nuckolls, III <nuckolls.bob@aeroelectri
c.com> wrote:
At 08:33 AM 4/29/2018, you wrote:
net.net>
>
> Bare D-sub pins (male and female) make a small connector. Cover with a bi
t of shrink wrap.
> https://www.jameco.com/z/205089-1-TE-Connectivity-Size-20-D-Subminiature-C
ontact-Pin_449342.html?CID=GOOG&gclid=EAIaIQobChMIm4vXgczf2gIVD1cMCh0elA
MBEAQYASABEgJ3LPD_BwE
> -Kent
Agreed . . .
<2cbd7af4.jpg>
How many pins do you need? I'll include them in your order.
Got some small i.d. shrink to throw in too. Do you
have a d-sub crimp tool?
Bob . . .
Message 7
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Subject: | Re: Evolution of Wire (Correction) |
Why is some Tefzel wire super stiff (like that purchased from Aircraft
Spruce) while other Tefzel wire is much more flexible (like that purchased
from Stein Air)?
On Sat, Apr 28, 2018 at 8:25 PM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> . . . . . . . . . . . . . The 22759 wire
> was export controlled so we were leaning toward
> Spec 55 when Lear negotiated the export license
> and Teflon became the insulation of choice.
>
>
> Correction. TEFZEL. We looked at Teflon
> but not very hard. Excellent temperature ratings
> but very expensive. Teflon extruded onto
> the strands at such high temperatures that
> you had to have silver plated strands.
> Further, Teflon was softer and would cold-flow
> under the pressure a too tight a cable tie.
>
>
> Bob . . .
>
Message 8
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Subject: | Re: Evolution of Wire (Correction) |
Are the numbers printed on the wire *exactly* the same? If memory serves,
many months ago I was trolling ebay for deals on milspec wire & in the
process, found various numbers that all were Tefzel insulation, but some
had thicker insulation (larger overall diameter) than others of the same
gauge. I wish I could quote the numbers, but I failed to document what I
found.
Charlie
On Sun, Apr 29, 2018 at 10:04 AM, Ken Ryan <keninalaska@gmail.com> wrote:
> Why is some Tefzel wire super stiff (like that purchased from Aircraft
> Spruce) while other Tefzel wire is much more flexible (like that purchased
> from Stein Air)?
>
> On Sat, Apr 28, 2018 at 8:25 PM, Robert L. Nuckolls, III <
> nuckolls.bob@aeroelectric.com> wrote:
>
>> . . . . . . . . . . . . . The 22759 wire
>> was export controlled so we were leaning toward
>> Spec 55 when Lear negotiated the export license
>> and Teflon became the insulation of choice.
>>
>>
>>
>> Correction. TEFZEL. We looked at Teflon
>> but not very hard. Excellent temperature ratings
>> but very expensive. Teflon extruded onto
>> the strands at such high temperatures that
>> you had to have silver plated strands.
>> Further, Teflon was softer and would cold-flow
>> under the pressure a too tight a cable tie.
>>
>>
>> Bob . . .
>>
>
>
Message 9
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Subject: | Re: connector suggestion sought |
So is are any similar (eg: Molex) connectors just as good ---
John
Sent from my iPad
----x--O--x----
> On 29 Apr 2018, at 2:54 pm, Robert L. Nuckolls, III <nuckolls.bob@aeroelec
tric.com> wrote:
>
> At 08:33 AM 4/29/2018, you wrote:
vnet.net>
>>
>> Bare D-sub pins (male and female) make a small connector. Cover with a b
it of shrink wrap.
>> https://www.jameco.com/z/205089-1-TE-Connectivity-Size-20-D-Subminiature-
Contact-Pin_449342.html?CID=GOOG&gclid=EAIaIQobChMIm4vXgczf2gIVD1cMCh0el
AMBEAQYASABEgJ3LPD_BwE
>> -Kent
>
> Agreed . . .
>
> <2cbd7af4.jpg>
>
> How many pins do you need? I'll include them in your order.
> Got some small i.d. shrink to throw in too. Do you
> have a d-sub crimp tool?
>
>
> Bob . . .
Message 10
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Subject: | Re: Evolution of Wire (Correction) |
M22759/16 -- some I have bought (white) is very stiff while other (colors)
is noticeably more flexible.
On Sun, Apr 29, 2018 at 7:41 AM, Charlie England <ceengland7@gmail.com>
wrote:
> Are the numbers printed on the wire *exactly* the same? If memory serves,
> many months ago I was trolling ebay for deals on milspec wire & in the
> process, found various numbers that all were Tefzel insulation, but some
> had thicker insulation (larger overall diameter) than others of the same
> gauge. I wish I could quote the numbers, but I failed to document what I
> found.
>
> Charlie
>
> On Sun, Apr 29, 2018 at 10:04 AM, Ken Ryan <keninalaska@gmail.com> wrote:
>
>> Why is some Tefzel wire super stiff (like that purchased from Aircraft
>> Spruce) while other Tefzel wire is much more flexible (like that purchased
>> from Stein Air)?
>>
>> On Sat, Apr 28, 2018 at 8:25 PM, Robert L. Nuckolls, III <
>> nuckolls.bob@aeroelectric.com> wrote:
>>
>>> . . . . . . . . . . . . . The 22759 wire
>>> was export controlled so we were leaning toward
>>> Spec 55 when Lear negotiated the export license
>>> and Teflon became the insulation of choice.
>>>
>>>
>>>
>>> Correction. TEFZEL. We looked at Teflon
>>> but not very hard. Excellent temperature ratings
>>> but very expensive. Teflon extruded onto
>>> the strands at such high temperatures that
>>> you had to have silver plated strands.
>>> Further, Teflon was softer and would cold-flow
>>> under the pressure a too tight a cable tie.
>>>
>>>
>>> Bob . . .
>>>
>>
>>
>
Message 11
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Subject: | Re: connector suggestion sought |
At 09:10 AM 4/29/2018, you wrote:
>I have lots of pins, and the tooling, and lots
>of heat shrink. But I don=99t think my avionics
>person will sign off on it. He=99s quite conservative.
>
>Can I tell him it passes AC 43.13?
I don't think AC43.13 would prohibit it
but it's certainly unique with respect to
legacy techniques. But if you'd asked
some FAA master of the rule books if
we could figure out a way to run dozens
of amps through arrays of 20AWG d-sub
pine, you would most certainly have been
discouraged from attempting it. Yet this
technique flew on a military supersonic
target and on numerous power distribution
boxes in the Hawker 4000.
Give it a try. If push comes to shove, you
can go to knife splices under heat-shrink
or even solder-sleeves. These wires are
seldom opened for service . . . there's
probably enough slack to cut out and replace
several solder sleeves . . . by that time
you'll probably be more than ready to sell
the airplane.
The knife splice is attractive from the
perspective of wire lost during each remove
replace operation. Cutting the single terminal
off the EL panel power wire only deprives you
of 3/16" or so of wire. Cutting out a solder
sleeve would double that.
Bob . . .
Message 12
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Subject: | Re: Evolution of Wire (Correction) |
22759/18 is like /16 but =9Cthin wall=9D, if I recall.
On Apr 29, 2018, at 11:41, Charlie England <ceengland7@gmail.com> wrote:
Are the numbers printed on the wire *exactly* the same? If memory serves, ma
ny months ago I was trolling ebay for deals on milspec wire & in the process
, found various numbers that all were Tefzel insulation, but some had thicke
r insulation (larger overall diameter) than others of the same gauge. I wish
I could quote the numbers, but I failed to document what I found.
Charlie
> On Sun, Apr 29, 2018 at 10:04 AM, Ken Ryan <keninalaska@gmail.com> wrote:
> Why is some Tefzel wire super stiff (like that purchased from Aircraft Spr
uce) while other Tefzel wire is much more flexible (like that purchased from
Stein Air)?
>
>> On Sat, Apr 28, 2018 at 8:25 PM, Robert L. Nuckolls, III <nuckolls.bob@ae
roelectric.com> wrote:
>>> . . . . . . . . . . . . . The 22759 wire
>>> was export controlled so we were leaning toward
>>> Spec 55 when Lear negotiated the export license
>>> and Teflon became the insulation of choice.
>>
>>
>> Correction. TEFZEL. We looked at Teflon
>> but not very hard. Excellent temperature ratings
>> but very expensive. Teflon extruded onto
>> the strands at such high temperatures that
>> you had to have silver plated strands.
>> Further, Teflon was softer and would cold-flow
>> under the pressure a too tight a cable tie.
>>
>>
>> Bob . . .
>>
>
Message 13
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Subject: | Re: connector suggestion sought |
I=99ll try him on the knife splices. They feel very 1973 though :)
>>sell the airplane
Heresy!
On Apr 29, 2018, at 13:38, Robert L. Nuckolls, III <nuckolls.bob@aeroelectri
c.com> wrote:
At 09:10 AM 4/29/2018, you wrote:
> I have lots of pins, and the tooling, and lots of heat shrink. But I don
=99t think my avionics person will sign off on it. He=99s quite con
servative.
>
> Can I tell him it passes AC 43.13?
I don't think AC43.13 would prohibit it
but it's certainly unique with respect to
legacy techniques. But if you'd asked
some FAA master of the rule books if
we could figure out a way to run dozens
of amps through arrays of 20AWG d-sub
pine, you would most certainly have been
discouraged from attempting it. Yet this
technique flew on a military supersonic
target and on numerous power distribution
boxes in the Hawker 4000.
Give it a try. If push comes to shove, you
can go to knife splices under heat-shrink
or even solder-sleeves. These wires are
seldom opened for service . . . there's
probably enough slack to cut out and replace
several solder sleeves . . . by that time
you'll probably be more than ready to sell
the airplane.
The knife splice is attractive from the
perspective of wire lost during each remove
replace operation. Cutting the single terminal
off the EL panel power wire only deprives you
of 3/16" or so of wire. Cutting out a solder
sleeve would double that.
Bob . . .
Message 14
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Subject: | Re: PVC vs Nylon Connectors |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Message 15
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Subject: | Re: Evolution of Wire (Correction) |
Here is a handy chart of wire species. You can google the coating
abbreviations or the part numbers for more info
-Kent
> On Apr 29, 2018, at 11:41 AM, Charlie England <ceengland7@gmail.com>
wrote:
>
> Are the numbers printed on the wire *exactly* the same?
Message 16
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Subject: | Re: Evolution of Wire (Correction) |
At 11:42 AM 4/29/2018, you wrote:
>M22759/16 -- some I have bought (white) is very stiff while other
>(colors) is noticeably more flexible.
>
>On Sun, Apr 29, 2018 at 7:41 AM, Charlie England
><<mailto:ceengland7@gmail.com>ceengland7@gmail.com> wrote:
>Are the numbers printed on the wire *exactly* the same? If memory
>serves, many months ago I was trolling ebay for deals on milspec
>wire & in the process, found various numbers that all were Tefzel
>insulation, but some had thicker insulation (larger overall
>diameter) than others of the same gauge. I wish I could quote the
>numbers, but I failed to document what I found.
there is a catalog at: https://goo.gl/ZfNq9T
In this document, you will find that 22759 has
about 90+ 'slash' numbers that define variations
on the theme for this class of wire.
There are other mil-spec numbers describing
wire that is entirely suited to our tasks.
I am mystified that products in a particular
/number would demonstrate significant variations . . .
unless the variations are a feature not defined
in the root specification . . . flexibility may
indeed be one. But materials, construction and
dimensions should be consistent to the catalog
description.
Bob . . .
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