Philco type 24 screen-grid Tetrode
date: label: date made
content: ca 1929
name: label: maker
content: Philco
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: ZZ.RSN80552U39
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: tetrode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Physical Description
content: composition (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: electron tube: 13 cm x 4 cm; 5 1/8 in x 1 9/16 in
label: Measurements
content: overall: 4 7/8 in x 1 3/4 in; 12.3825 cm x 4.445 cm