Papers relating to the thermionic valve, 1904-33

File

MS. Marconi 367

Includes:

Letter from J.A. Fleming to Marconi referring to his discovery of a method of rectifying electrical oscillations, which led to his invention of the thermionic valve, 1904
Correspondence, including from H.J. Round and J.A. Fleming, concerning valves, 1909-20
Papers relating to dull emitter or low temperature emitting valves, 1922
Report on the emission of X-rays from valves, 1923
Letter from J.A. Fleming to Marconi noting the 21st anniversary of the invention of the thermionic valve, 1925
Articles and press cuttings on valves, 1919-33

Dates

1 box

MS. Marconi 367

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