Sharp Compet ELSI-8M calculator (1969)
UvA Computer Museum catalogue nr 00.19
This is an early almost-pocketsize calculator (though it used an
external power supply). The size of the numeric keys is about 15
mm. The display is built from eight vacuum-fluorescent tubes (*).
Unfortunately the power supply (with unknown characteristics) is
(*) See 'Electronic Numbers', Scientific American, June
The calculator was donated by Mr. J. Franssen