Sinclair C5 with Sinclair claiming that he had found "very big" levels of interest. Hoover were sufficiently persuaded to allow Sinclair to divert 10 of their employees to modify C5s for overseas export. The bid to sell the C5 abroad failed; the Dutch National Transport Service told Sinclair that the C5 was not suitable for Dutch roads without improvements to its braking system, the addition of more reflectors, and the inclusion of the High-Vis Mast as part of the basic package. Most of the other ten countries that Sinclair inquired of demanded similar changes. The C5's reputation received a further battering when
Sinclair Radionics on the NewBrain microcomputer project, which was later taken over by Newbury Laboratories. In May 1979, the NEB announced that it intended to sell Radionics' calculator and TV interests; they were bought by the ESL Bristol group (as Radionic Products Ltd.) and Binatone respectively. In July Clive Sinclair resigned with a £10,000 golden handshake. In September the NEB renamed what was left of Radionics (i.e. the scientific instrument business) as Sinclair Electronics Ltd.; in January 1980 this was changed to Thandar Electronics Ltd. As of 2008 this business continues, now called Thurlby Thandar Instruments. When it became clear that Radionics