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From: crs@lanl.ARPA
Newsgroups: net.analog
Subject: Re: "Just Wrap" summary
Message-ID: <22805@lanl.ARPA>
Date: Mon, 4-Mar-85 10:03:11 EST
Article-I.D.: lanl.22805
Posted: Mon Mar  4 10:03:11 1985
Date-Received: Fri, 8-Mar-85 03:58:05 EST
References: <214@ihlpg.UUCP>
Sender: newsreader@lanl.ARPA
Distribution: net
Organization: Los Alamos National Laboratory
Lines: 29

> 
> Evidently, this tool relies on the sharp corners of the pins to
> cut into the insulation and make contact.  This doesn't always
> work, and it's useless if you're wrapping anything but square
> pins.  I use wire wrap for just about everything, e.g., making
> connections to TO-220 devices like power transistors and voltage
> regulators - you can wrap right on the legs if you're careful.
> 
I had hoped to quote from a Gardner-Denver publication that came
with my wire-wrap(r) tool but, naturally, I can't find it.

CONNECTIONS WRAPPED ON TERMINALS WITHOUT SHARP CORNERS SHOULD BE
CONSIDERED TEMPORARY AT BEST.

Please be aware that solderless connections of this type *depend*
on the sharp corners of the post biting into the wire for the
gas tight connection.  This is true with STRIPPED wire too.
If you wrap onto a terminal without *sharp* corners, consider it
*at best* a temporary connection only slightly better than if you
had wrapped the turns with your fingers.  That's why wire-wrap
posts are either square or rectangular and have been, well before
the existance of the tools that are supposed to bite through the
insulation.

Wire-wrap(r) is a registered trade mark of Gardner-Denver.

Charlie
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