Sinclair Cambridge Programmable

The Sinclair Cambridge Programmable Calculator was also sold in the U.S as the Radio Shack EC-4001.

It had an 8 digits red LED display (made by National Semiconductor).

Scientific programmable. Integrated circuits - National Semiconductor MM5799EHY/N and DS7784N
Required a 9v (PP3 battery) - a "pregnant" mode because of the bulge on the back.
50 mm x 111 mm x 28 mm.
Made in England.

Our calculator was kindly donated by Francis Hookham

Manufacturer: Sinclair
Date: 4th September 1976

Other Systems Related To Sinclair Cambridge Programmable:

Item Manufacturer Date
Sinclair Enterprise Programmable Sinclair Unknown
Sinclair Executive Memory Sinclair 1973
Sinclair Cambridge Type 1 Sinclair July 1973
Sinclair Cambridge Type 3 Sinclair 1975
Sinclair Scientific programmable Calculator Type 2 design Sinclair 1975
Sinclair Cambridge Memory Type 3 Sinclair 1975
Sinclair Oxford 200 Type 1 Sinclair 1975
Sinclair Oxford 200 Type 2 Sinclair 1975
Sinclair Oxford 200 Type 1 (Early style) Sinclair 1975
Sinclair Oxford Universal Sinclair 1975
Sinclair Cambridge Type 4 Sinclair 1975
Sinclair Cambridge Scientific Calculator Sinclair 1975
Sinclair Oxford Scientific White Calculator Sinclair 1976
Sinclair Sovereign Sinclair 1976
Sinclair Cambridge Programmable Sinclair 4th September 1976
Sinclair Instrument Wrist Calculator Sinclair Radionics February 1977
Sinclair President Sinclair 1978

This exhibit has a reference ID of CH2696. Please quote this reference ID in any communication with the Centre for Computing History.

 

Sinclair Cambridge Programmable


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