of Kingsmead Works, High Wycombe, Bucks.
1946 Private company established to contain A. C. Cossor's thermionic valve operations, which had been concentrated in one unit after the end of the War, in collaboration with Sylvania Electronic Products. This subsidiary was entitled Electronic Tubes.
1947 Patent on improvements in cathode ray tubes.
Maker of Emitron cathode ray tubes
1958 Patent on improvements in electron guns.
1961 Manufacturers of cathode-ray tubes. 500 employees.
1963 Patent on improvements in circuits for cathode ray tubes.