Schematics of Atanasoff-Berry Computer logic circuits?

[William Donzelli]

> Does the CHM have a complete 'large'-category tube system that could
>  conceivably be made to run again?

Al?

>  When I spoke to Paul Pierce a few years ago he hoped to get his 709 running
>  again, but I think he was viewing it as a retirement project.

Certainly a 709 is possible. Depending on the condition of the tubes,
or how well one has been squirreling them away, it could be expensive
as well.

>  I would hope some of those smaller drum machines (Bendix, LGP-xx, etc) which
>  are still around in some number would run again. (Yes, there's the one in
>  Germany). IIRC, Tom Jennings had an LGP-<something> he was working on.

Yes, the smaller drum machines should not be to bad. 400 small tubes
in a system is not a big deal at all. Things like the condition of the
drum, however, can be a big deal.

I think there is a working IBM 650 in Germany as well.

--
Will