 Clive Sinclair 's relationship with the NEB was fraught due to conflicting notions about which direction the company should go . Radionics had begun a project to develop a home computer but the NEB wanted to concentrate on the instrument side of the business , which was virtually the only area where Radionics was profitable . Sinclair disagreed vehemently with what he characterised as the view " that there was no future in consumer electronics " . This and other disputes led to Sinclair resigning from Radionics in July 1979 . 
