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Sir (John) Ambrose Fleming

(1849-1945), Electrical engineer and university teacher

Sitter in 8 portraits
Physicist and electrical engineer. Born in Lancaster, Fleming studied at St John's College, Cambridge. Whilst Professor of Electrical Engineering at University College London (1885-1926), he invented the Thermionic Valve (1904), which became widely used in the rapidly developing world of television, radio and early computing. Fleming was also a pioneer in the application of electricity to heating and lighting on a large scale. He was knighted in 1929.

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Sir (John) Ambrose Fleming, by Walter Stoneman - NPG x165627

Sir (John) Ambrose Fleming

by Walter Stoneman
bromide print, 1923
NPG x165627

Sir (John) Ambrose Fleming, by Bassano Ltd - NPG x124487

Sir (John) Ambrose Fleming

by Bassano Ltd
whole-plate glass negative, 25 March 1929
NPG x124487

Sir (John) Ambrose Fleming, by Bassano Ltd - NPG x124488

Sir (John) Ambrose Fleming

by Bassano Ltd
whole-plate glass negative, 25 March 1929
NPG x124488

Sir (John) Ambrose Fleming, by Walter Benington, for Elliott & Fry - NPG x91858

Sir (John) Ambrose Fleming

by Walter Benington, for Elliott & Fry
chlorobromide print, February 1932
NPG x91858

Sir (John) Ambrose Fleming, by Elliott & Fry - NPG x82135

Sir (John) Ambrose Fleming

by Elliott & Fry
half-plate negative, 1932
NPG x82135

Web image not currently available

Sir (John) Ambrose Fleming

by Walter Stoneman
negative, 1917
NPG x43379

Web image not currently available

Sir (John) Ambrose Fleming

by Walter Benington, for Elliott & Fry
bromide print, 19 February 1932
NPG x94117

Web image not currently available

Sir (John) Ambrose Fleming

by Walter Stoneman
half-plate glass copy negative, June 1950 (1923)
NPG x190842

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