Prinztronic Micro
Prinztronic Micro
Display is 8 digits, red LED.
4 functions.
Integrated circuits - Toshiba T1271, T3103.
6v (4x AA).
74 mm x 103 mm x 29 mm (3" x 4" x 1.2").
About 1972/3.
Made in Japan.
Cost £45 Sterling (about US$105) in May 1973.
This is a version of the Sharp EL-801 made for Dixons, with a slighly cheaper plastic body.
This was the first calculator to use CMOS (Complementary Metal-Oxide Silicon) integrated circuits, which have very low power consumption (though here negated somewhat by the use of the relatively high-current LED display).
The display board, upper-left, plugs into the processing board, lower-left. The assembly is then turned over and plugged into the back of the keyboard, on the right.
The integrated circuits are on the processing board.
Prinztronic models
Vintage British Calculators
Text & photographs copyright, except where stated otherwise, © Nigel Tout 2000-2024.