Decimo Vatman Executive
Decimo Vatman Executive type 1
Decimo Vatman Executive - type 1.
3V (2 x AA).
8 digits, red LED.
Integrated circuit - Texas Instruments TMS0802NC, here date coded to mid 1974. Note the 9 black transistors used to drive the current through the LED display segments, which is too large for this integrated circuit.
4 functions, %.
76 x 126 x 19 mm (3.0" x 5.0" x 0.75").
Made in Japan.
Decimo Vatman Executive type 2
Silver keyboard version.
Black keyboard version.
Decimo Vatman Executive - type 2.
6V (4 x AA).
8 digits, green fluorescent in single tube.
4 functions, %, square root, memory.
83 mm x 130 mm x 28 mm (3.25" x 5.2" x 1.1").
Made in Japan.
The % key may be marked "VAT" for use in calculations of Value Added Tax within the EEC (European Economic Community).
Decimo models
Vintage British Calculators
© Text & photographs copyright Nigel Tout 2000-2023 except where noted otherwise.