Replica of Fleming valve of 1904
date: label: date made
content: 1960
name: label: maker
content: Mullard
notes: label: Description (Brief)
content: Replica of Fleming diode of 1904. "The replica of Fleming's Valve of 1904 has been specially made for you by Mullard Limited and it is a really first-class copy of the original valve. It is so good a copy that I would have difficulty in deciding which was the original and which was the copy were it not for our identification markings on the original. [From letter: G.R.M. Garratt (Science Museum London) to W.J. King (Electricity Curator, USNM), 22 June 1960.]
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Mullard Limited
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.318014
label: catalog number
content: 318014
label: accession number
content: 232229
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: diode tube
label: Object Name
content: diode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 8 3/4 in x 2 1/4 in; 22.225 cm x 5.715 cm