Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,481 pages of information and 233,901 images on early companies, their products and the people who designed and built them.
of Southend-On-Sea, Essex
1952 limited production of cathode ray tubes
1952 Some production of special valves
1961 Vacuum research engineers, manufacturing cathode ray tubes and electric incandescent lighting apparatus, thermionic valves, television and X-ray and other scientific apparatus. 300 employees.