Sinclair Cambridge Calculator
The Sinclair Cambridge range of calculators were introduced in summer 1973. There were a dozen models and variations!
It has a red LED display, 4-functions, constant, [C] and [K] (constant) keys. It uses 4x AAA batteries. The main integrated circuit is a General Instruments Microelectronics GI-C550.
It was available to buy as a kit for £24.95 in January 1974. See the advert taken from Everyday Electronics magazine.
Sixe : 50 mm x 111 mm x 28 mm (2" x 4.4" x 1.1").
Made in England.
Date of Manufacture: June 1973
Quantity Available: 1
Working Condition: Working
Physical Condition: Good
Original Box: Yes