I don't remember that foam as being conductive. Most conductive foams
tend to shred, those bits are not kind to the electronics.
Allison
-----Original Message-----
From: Pete Turnbull <pete(a)dunnington.u-net.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)classiccmp.org>
Date: Monday, November 19, 2001 7:49 PM
Subject: PDP-8 case
I've been cleaning up my recently-acquired PDP-8/E,
and I've had to
remove
the plastic foam from the inside of the lid, which was
fairly horrible.
I'm not sure what best to replace it with, as the foam was in two
parts.
The square(ish) area above the rear Omnibus section was ordinary brown
high-density plastic foam, about 3/8" thick, but most of the area above
the
front section was black conductive foam. Is this
original? Was it
supposed to protect the boards that have H851 over-the-top connectors
from
static that might have been carried by ordinary foam?
I'd have thought
the
leakage through the conductive foam might upset some
circuits.
So, should I use ordinary high-density foam, or conductive?
--
Pete Peter Turnbull
Network Manager
University of York