[Milsurplus] [ARC5] Wire

Thu Sep 15 21:35:17 EDT 2011

Yes and no. It can be either nylon coated or not. Look at the spools of
THHN at Home Depot or a similar place. THHN is mostly a temperature spec.

There are other options like MTW.

Also, THHN in sizes smaller than #14 is hard to get. It may be available
through an electronics supplier, but you probably have to buy 1000'
minimum.

Finally, modern THHN is printed along its length. WW II wire was generally
not, or if it was, it had circuit numbers on it.

Best,

-John

================

> Nylon coated PVC sounds like THHN electrical conduit wire.
>
>
>
> On 9/15/2011 9:12 PM, J. Forster wrote:
>> YW. It looks OK for chassis wiring, but, sadly, not for cables. I'm not
sure there are any good alternatives to stranded Teflon in Expando
>> for cables. The nylon coated PVC seems to be very hard to get.
>> -John
>> ===============
>>> It may not be cheap but it's a heck of a lot easier.  Thanks, John!
Best regards,
>>> Michael, WH7HG ex-K3MXO, ex-KN3MXO, WPE3ARS, BL01xh ex-Mensa A&P PP
BGI
>>> I am me.  I’m the only one who’s qualified.
>>> http://www.nationalmssociety.org/chapters/NTH/index.aspx
>>> http://wh7hg.blogspot.com/
>>> http://kludges-other-blog.blogspot.com
>>> Hiki Nô!
>>> -----Original Message-----
>>> From: J. Forster [mailto:jfor at quikus.com]
>>> Sent: Thursday, 15 September, 2011 14:50
>>> To: h Kludge
>>> Cc: arc5 at mailman.qth.net; milsurplus at mailman.qth.net
>>> Subject: Re: [ARC5] Wire
>>> Not cheap, but:
>>> http://tubesandmore.com/Catalog/page_084_085.php
>>> -John
>>> ===========
>>>> In looking at the fabric over rubber wiring used way back when, there
seem
>>>> to be two different flavors, one that has the fabric kind of loose
and
>>>> easily frayed and the other has the fabric somehow bonded to the rubber
>>>> which reduces fraying and makes for neater work.  Since I’m going to try
>>>> my
>>>> hand at making fabric over something wire in an attempt at making things
>>>> appear even more authentic*, it would be nice to know how it was done
originally.  “Something” may wind up plastic, vinyl or Teflon
dependent
>>>> on
>>>> what I can get that looks right as to overall bulk.
>>>> * I may even try lacing in the tracers which would probably not be good
>>>> therapy when they take me back to psych lockdown as a result of this
activity.  Nor would basket weaving.  :-)
>>>> The way I think this will work is to use white older type flat
shoelaces,
>>>> wet them and force them over forms (read as: dowels) while they dry
to
>>>> reduce or take out the creases.  (This may also require a bit of
ironing.)
>>>> After that, introduce them to some RIT dye to get the right base colors
>>>> for
>>>> color coded wiring and put them back over the forms to dry.  Assuming
(and
>>>> we all know what that word means) this works as planned, I may actually
>>>> try
>>>> lacing in the tracers although it would be insanely time&  labor
intensive
>>>> and only a few people would actually realize that the tracers are
supposed
>>>> to be there.  I think all of them are in these lists.  Anyway, a little
>>>> yellow varnish to give it the official MFP look and I should have
wire
>>>> good
>>>> for open cables.
>>>> If the basic project goes well – i.e., the part about using shoelaces to
>>>> make a reasonable facsimile of WW II cloth covered wire – the next step
>>>> would be to use the same basic technique to make vinyl over white woven
>>>> fabric over vinyl wiring used in later aircraft.  I’m not sure I know
what
>>>> to seal the fabric with but after that’s done the top coat can be a dip
>>>> in
>>>> Dip-It clear vinyl.  If this works as I think it will, this will
solve
>>>> the
>>>> problem of wiring up the Type 12 equipment with more or less period
appropriate open wire.
>>>> Using shoelaces presents two problems right off.  First, the prices
of
>>>> good
>>>> ones that don’t have the funky seams on each edge and are small
enough
>>>> have
>>>> gone out of sight.  Second, it limits the size of any given run to
the
>>>> length of the longest laces I can find.  On the other hand, for
everything
>>>> except the SCR-A*-183 I’ll be using open wiring as much as possible,
mostly
>>>> because I like it but also because a good number of my connectors are
for
>>>> open wiring and it’s easier to convert the ones that aren’t to that than
>>>> it
>>>> is the ones for open wiring to shielded cable.
>>>> So there it is.  Thoughts?
>>>> Best regards,
>>>> Michael, WH7HG ex-K3MXO, ex-KN3MXO, WPE3ARS, BL01xh ex-Mensa A&P PP BGI
>>>> I am me.  I’m the only one who’s qualified.
>>>>   <http://www.nationalmssociety.org/chapters/NTH/index.aspx>
>>>> http://www.nationalmssociety.org/chapters/NTH/index.aspx
>>>>   <http://wh7hg.blogspot.com/>  http://wh7hg.blogspot.com/
>>>>   <http://kludges-other-blog.blogspot.com/>
>>>> http://kludges-other-blog.blogspot.com
>>>> Hiki Nô!
>>>> ______________________________________________________________ ARC5
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