Sinclair Sovereign (Silver Jubilee)

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The Sovereign was one of the last calculators to be released by Sinclair Radionics before the company was split up and sold off by the National Enterprise Board. It was released in 1976 and can display eight digits in its red LED display. It has a Mostek MK50321N main integrated circuit, and features the usual four arithmetic functions plus square, square root, percentage, and memory. As the case was made of pressed steel instead of plastic it was available in a variety of styles, including black painted, chrome plated, silver plated, and gold plated.

Sinclair won a Design Council Award in 1977 for the Sovereign calculator, which was designed by John Pemberton.

This example in our collection is the brushed chrome model. It was donated by Chris Wilding, a former employee of Sinclair Radionics and Sinclair Electronics.

Manufacturer: Sinclair Radionics
Date: 1977

Other Systems Related To Sinclair Sovereign (Silver Jubilee):

Item Manufacturer Date
Sinclair Executive Type 2 Sinclair Radionics 1972
Sinclair Executive Type 1 Circuit Board Sinclair Radionics 1972
Sinclair Executive Type 1 Sinclair Radionics 1972
Sinclair Executive Memory (Possible Development Model) Sinclair Radionics 1973
Sinclair Executive Memory (Development Model) Sinclair Radionics 1973
Sinclair Cambridge (Type 1) Sinclair Radionics July 1973
Sinclair Oxford 100 (Type 1) Sinclair Radionics 1975
Sinclair Cambridge (Type 3) Sinclair Radionics 1975
Sinclair Scientific Programmable Calculator Sinclair Radionics 1975
Sinclair Oxford 200 (Type 1) Sinclair Radionics 1975
Sinclair Oxford 200 (Type 2) Sinclair Radionics 1975
Sinclair Oxford 200 (Type 1 - Early Style) Sinclair Radionics 1975
Sinclair Oxford Universal Sinclair Radionics 1975
Sinclair Oxford 300 (Type 2) Sinclair Radionics 1975
Sinclair Cambridge (Type 4) Sinclair Radionics 1975
Sinclair Sovereign (Gold) Sinclair Radionics 1976
Sinclair Enterprise (Early Prototype Model) Sinclair Radionics 1976
Sinclair Sovereign (Black) Sinclair Radionics 1976
Sinclair Cambridge Scientific Calculator Sinclair Radionics 1976
Sinclair Enterprise (Possible Prototype Model) Sinclair Radionics 1977
Sinclair Enterprise Programmable Sinclair Radionics 1978

This exhibit has a reference ID of CH66641. Please quote this reference ID in any communication with the Centre for Computing History.

 

Sinclair Sovereign (Silver Jubilee)


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