local demolition of SAGE building

[cswiger]

On Tue, 19 Jul 2005, Paul Koning wrote:

> >>>>> "Chuck" == Chuck Swiger <cswiger at widomaker.com> writes:
>
>  Chuck> Is this TRUE? Did they actually use vacuum tube computers up
>  Chuck> untill 1983?
>
> It makes perfect sense.  It's a critical application, and it has been
> running reliably on that hardware.  It makes sense to continue running
> the hardware rather than deal with the cost and risk of porting it to
> new, unproven, technology.
>

I understand. They must have run the 49,000 tubes pretty
conservatively to minimize failures (Unlike what we always
hear about ENIAC).  Even in 1976 my Heathkit VTVM got
solid state plug in FET replacements for the two tubes ;)

--Chuck