[ARC5] Tape

[Fuqua, Bill L]

Oh, I learned a neat trick to strip teflon insulation a long time ago.
I would use a cheap pair of flush wire cutters, you know, those things stamped out of sheet metal.
And get a piece of piano wire that was just slightly larger in diameter than the bare wire to be stripped.
Clamp down real hard on the piano wire and you get a nice round hole in the jaws of the wire stripper.
Insert the teflon wire and squeeze down and the teflon would cold flow into two pieces on either side
and strip off very cleanly. 

73
Bill wa4lav
________________________________________
From: Clare Owens [clare.owens at gmail.com]
Sent: Thursday, April 25, 2013 12:49 PM
To: Fuqua, Bill L; Arc5 at mailman.qth.net
Subject: Re: [ARC5] Tape

I still have one hanging on my pegboard in an honored place - and I still use it!  And I was an SE not a CE...  But I used to do some hardware things for control system and teleprocessing computer interfaces with the real world and always stayed buddies with the CEs...

I also have one old (large for 1620 computer) and one new 30ga wire wrap tool, a delete tool, the two sizes of screw starters and a couple of spring hooks.  And a bunch of other IBM trinkets, like the plastic Hex adders, Hexapawn games, History of Mathematics charts, etc., etc.

Ah the good old days.

Clare


On Thu, Apr 25, 2013 at 12:35 PM, Fuqua, Bill L <wlfuqu00 at uky.edu<mailto:wlfuqu00 at uky.edu>> wrote:
  That reminded me about the neat stripper that IBM used to use for their #30 teflon wire.
They used modified long nose pliers. Anyone remember those?
73
Bill wa4lav

________________________________________
From: Fuqua, Bill L
Sent: Thursday, April 25, 2013 12:33 PM
To: WA5CAB at cs.com<mailto:WA5CAB at cs.com>; Arc5 at mailman.qth.net<mailto:Arc5 at mailman.qth.net>
Subject: RE: [ARC5] Tape

   Full circle type wire strippers will work but not in the way most do.
The stripper must almost make contact with wire all the way around and the teflon cold flows to either side
and the small very thin bit left will snap into when you pull the wire thru the closed stripper.
  I use the small Leatherman strippers like the ones you can get at Radio Shack. Another neat thing
about these is that I use them to strip small solid conductor shield teflon coax. I use a larger gauge hole
to scribe the shield and snap the shield into and slide it off and then strip the inner conductor. It will work
down to about .05 diameter coax.
  73
Bill wa4lav

________________________________________
From: arc5-bounces at mailman.qth.net<mailto:arc5-bounces at mailman.qth.net> [arc5-bounces at mailman.qth.net<mailto:arc5-bounces at mailman.qth.net>] on behalf of WA5CAB at cs.com<mailto:WA5CAB at cs.com> [WA5CAB at cs.com<mailto:WA5CAB at cs.com>]
Sent: Thursday, April 25, 2013 11:21 AM
To: Arc5 at mailman.qth.net<mailto:Arc5 at mailman.qth.net>
Subject: Re: [ARC5] Tape

I agree with Bill.  The only thing "awful" about Teflon insulated wire is
that mechanical strippers don't work well with it.  Thermal strippers do.

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480

In a message dated 04/25/2013 09:38:52 AM Central Daylight Time,
wrcromwell at gmail.com<mailto:wrcromwell at gmail.com> writes:
> On Thu, 2013-04-25 at 03:47 -0700, don davis wrote:
> >Yes, Kapton is the right stuff.  Teflon is awful.  Mylar film can be used
> OK
> >as well as polyolefin tubing.  Spaghetti tubing made of fiberglass is OK
> and
> >is period correct.  RTV might work - but ONLY electronic grade.  Leads
> can
> >also be epoxy coated to immobilize them.  Lead inductance shouldn't make
> a
> >difference with electrolytic caps at audio frequencies.
> >
> >73 de don ad6PB
>
>
> Hi Don,
>
> I have some teflon insulated wiring that has been in place for years.
> Apparently the memo about how awful teflon is wasn't out and that wiring
> doesn't know any better than to work. Maybe those other products are
> better choices in new applications today.
>
> Maybe the post about the lead length came from somebody who didn't know
> these caps are not being used at UHF. At power and audio frequencies the
> inductance doesn't amount to anything at all.
>
> 73,
>
> Bill  KU8H
>
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