Decimo Strand Memory
3v (2x AA batteries).
Display is 8 digits, green vacuum fluorescent.
4 functions, %, memory, square root.
Integrated circuit: NEC uPD278C.
78 x 136 x 26 mm. (3" x 5.4" x 1").
Made in Japan.
The label on the rear says "Supplied exclusively by Decimo".
Note that this model is identical except labelling to the Decimo Strand Memory version for W.H. Smith, a British national chain of newsagent, book, stationery, and music stores.
The circuit board with NEC uPD278C calculator integrated circuit on the left and the vacuum-fluorescent display (VFD) in a single tube on the right.
Vintage British Calculators
© Text & photographs copyright Nigel Tout 2000-2023 except where noted otherwise.