Vintage British Calculators

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Decimo Strand


3v (2x AA batteries).

Display is 8 digits, green vacuum fluorescent.

4 functions, %.

Integrated circuit: NEC uPD941C.

78 x 136 x 26 mm. (3" x 5.4" x 1").

Made in Japan.

The label on the rear says "Supplied exclusively to W.H. Smith by Decimo".
W.H. Smith is a British chain of newsagent, book, stationery, and music stores.


The electronics inside, showing the vacuum-fluorescent display (VFD) in a single tube on the left, the edge of the keyboard in the middle, and the NEC uPD941C calculator chip on the right.

Vintage British Calculators

© Text & photographs copyright Nigel Tout   2000-2020  except where noted otherwise.