Path: utzoo!mnetor!uunet!husc6!hao!gatech!udel!burdvax!coltoff
From: coltoff@PRC.Unisys.COM (Joel Coltoff)
Newsgroups: sci.electronics
Subject: Re: Wire-wrap Question
Message-ID: <5256@burdvax.PRC.Unisys.COM>
Date: 14 Jan 88 14:58:16 GMT
References: <7110004@hpcupt1.HP.COM>
Organization: Unisys Corporation, Paoli Research Center; Paoli, PA
Lines: 26

In article <7110004@hpcupt1.HP.COM> glowell@hpcupt1.HP.COM (Gary Lowell) writes:

>Does anybody know if wire-wrap can be used to build a reliable proto-type
>at 20 Mhz clock rates and what techniques can be employed minimize
>problems ?  I am trying to determine the feasibility building a homebrew
>computer using 20 Mhz 80386 chipset.
>

3M make a prototyping system that is much better than wire wrap.
I don't know what it is called and the one I use is in another
build 15 miles away so I can't check. It works like this. Each socket
has pins that look like

	|\  /|
	| \/ |  (maginified mucho times)
	|    |

and you run a wire along and mash it into the pins. You can squeeze
upto three wires in a hole. You should be able to run an entire net
with 1 wire since there is no reason to cut the wire at each tie point.
It avoids alot of the problems that wire-wrap has such as pins nicking
nets when you make a right angle bend. (What do you mean you don't have
any right angles? You wire point to point and then mash the wires down.
I've never done that. Ha Ha)

	- Joel