On Nov 19, 18:35, Richard Erlacher wrote:
> From: "Greg Ewing" <greg_at_cosc.canterbury.ac.nz>
> > I think so-called "conductive" foam actually has quite
> > a high resistance. If that's so, it would be unlikely
> > to upset any ordinary logic circuit.
> ISTR something about megohms per linear inch...
> I doubt that will bother PDP-8 circuits much.
Resistivity is normally measured "per square" (if it's linear, how wide
should the strip be?) And this stuff is about 25 megohms per square,
according to my measurements. So, no, I don't see how it could bother 7400
TTL.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Tue Nov 20 2001 - 02:09:40 GMT