Sinclair Radionics developed a range of custom-made digital devices in the ‘70s. When Clive Sinclair left Sinclair Radionics, in 1979, the National Enterprise Board created a new company, provisionally called Sinclair Electronics, that was later renamed Thandar. Thandar blossomed to become a reliable manufacturer of custom-made digital devices that still works on today’s market under the name Thurlby-Thandar Instruments (http://www.tttinst.co.uk).