Philips type C-643 receiving pentode
name: label: maker
content: Philips
notes: label: Description (Brief)
content: A plastic 5-pin base with S-shaped envelope. Maker's stamp on top. Donor’s card reads: “Receiving triode made by Philips of Holland. Used as a Class A audio output tube in radio receivers. Filament type: 6 volts at .25 amp. Plate 300 volts, screen 200 volts, 20 volt negative control grid bias.” See also: https://www.radiomuseum.org/tubes/tube_c643.html.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.324754
label: catalog number
content: 324754
label: accession number
content: 252994
objectType: label: Object Name
content: Electron Tube
label: Object Name
content: pentode
label: Other Terms
content: Electron Tube; Electron Tubes
physicalDescription: label: Measurements
content: overall: 4 in x 2 in; 10.16 cm x 5.08 cm