Tubes & Computers of Olden Days

[Simon Fryer]

Also at the National Museum of Computing at Bletchley Park, the
Harwell WITCH is currently being restored. See
http://www.tnmoc.org/126/section.aspx/120

Only a couple of tubes - mainly for the power supply. It is a decimal
machine and uses dekatrons.

Simon

-- 
------------------------------------------------------------------------
"Well, an engineer is not concerned with the truth; that is left to
philosophers and theologians: the prime concern of an engineer is
the utility of the final product."
Lectures on the Electrical Properties of Materials, L.Solymar, D.Walsh