[Elecraft] Stripping toroid leads

[Ken K6MR]

Vector also made a wire wrap tool that did not require stripping before wrapping: “Slit ‘n Wrap”. The tip of the tool had a knife edge that stripped the wire on the inside edge as you wrapped. They made a special wire that was sort of a cross between enamel and standard wire wrap wire. It was really quick because you could daisy chain from pin to pin without cutting/stripping individual wires. OK Machine Tool also made the “Just Wrap” which was a knock off of the same idea.

Ken K6MR



From: Mike Dodd<mailto:mike at mdodd.com>
Sent: Wednesday, April 6, 2016 17:40
To: elecraft at mailman.qth.net<mailto:elecraft at mailman.qth.net>
Subject: Re: [Elecraft] Stripping toroid leads

On 4/6/2016 2:44 PM, EricJ wrote:
> Looks identical to the wirewrap tools that were around ~30+ years ago or
> so. I still have one as the fine wire is great for making minor PCB
> changes or repairs. Never thought to load it with enamel wire as you do.
> It would make it even easier to make those changes/repairs.

No, wirewrap is completely different. It uses insulated (_not_ enameled)
#30 wire that must be stripped before wrapping. A motorized tool wraps
around 0.25" square posts. The sharp edges cut into the wire to make a
gas-tight connection. The connection is not soldered.

Trust me -- Early in my career,I spent hundreds of hours making
thousands of wirewrapped connections, and I even bought a Gardner-Denver
AC powered tool for home use (vs. the battery-powered tools we used at
work). I still have that tool, and a thousand feet of #30 wire, but I do
little wrapping these days.

The Vector tool is just a plastic "pencil" with a hollow metal tip
through which the enameled wire feeds. You manually wrap the wire around
a pin, move the pencil to the next pin, wrap that, and cut the wire.
Then you solder both pins. The solder melts through the enamel to make a
normal joint.


--
73, Mike N4CF
Louisa County, VA USA
Elecraft KX3 + KXPA100 @ 100W
Elecraft PX3 panadapter
Carolina Windom up 45'
http://n4cf.mdodd.com
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