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William Francis Tedham (1902-2000), physicist, pioneer of television technology.
1902 Born in Plumstead
c.1924 Studied Natural Sciences at Cambridge
1928 Working for the Gramophone Co where he was one of the inventors of a patented means of dampening piezo-electric devices.
1929 Patent with others on improvements in motion picture apparatus.
1929 Patent for Victor Talking Machine Co on moving picture apparatus.
1930 Patents for the Gramophone Co on optical projection apparatus, thermionic valves, on reproducing sound with the aid of light, photo-electric cells, etc.
c.1932 Moved to the EMI Research Laboratories where he was a very capable research worker, developing the Emitron television tube with James McGee. The other part of his group was led by L. Broadway working on receiver tubes.
1933 Patent on improvements in cathode ray tubes, television transmitting systems, etc.
c.1936 Unfortunately the hectic pressure of work to meet the deadlines for the new television service caused him to suffer a nervous breakdown and eventually resign.
1938 Patent for Kolster-Brandes Ltd relating to time-base circuits.
2000 Died in Watford