TECO 8000 calculator
UvA Computer Museum catalogue nr 00.62
This is an early (about 1972) small calculator with built-in power
supply. It supports the basic arithmetic functions; it has one
memory register. The size of the numeric keys is about 15 mm. The
display is built from eight vacuum-fluorescent tubes for the
numbers plus one combining the overflow indicator and the minus
sign. (*).
This calculator (probably made in Taiwan) was marketed in the
Netherlands by Vroom & Dreesmann. Click
here for an inside look.
(*) See 'Electronic Numbers', Scientific American, June
1973.
The calculator was acquired for almost nothing at the flee
market.