3 Aug
1999
3 Aug
'99
9:06 a.m.
Date: Tue, 3 Aug 1999 20:04:00 -0400 (EDT)
Reply-to: classiccmp(a)u.washington.edu
From: LordTyran <a2k(a)one.net>
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Re: Cool IBM PC find
X-To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
At the risk of sounding fundamentally stupid,
what's a tempest machine?
Kevin
RF is 95% blocked within a metal box.
Usually steel or alunium shell at ground potiental, any openings
heavily metallic screened and connections points is heavily filtered.
Over laps or at any 2 parts that meets is "metal" gasketed, spring
fingers strips or series of closely spaced fasteners/rivets. And
done in close tolerences on case work.
Wizard