Sinclair Radionics
Defunct British consumer electronics company known for calculators and early home computers.
Last updated August 31, 2026
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Overview
Sinclair Radionics was founded by Clive Sinclair in 1961 and became a notable British consumer electronics company. It initially produced radio kits, then moved into calculators, and launched innovative products in the 1970s. In 1980, the company was renamed Sinclair Research Ltd, but the Sinclair Radionics brand continued on some products. The company ceased operations in the late 1980s.
Products and positioning
A British consumer electronics brand known for innovation and low prices
Product categories. Calculators · Radio kits · Digital multimeters · Early home computers
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