General Electric / RCA / Cunningham type 77 “Radiotron” sharp cutoff pentode
name: label: maker
content: General Electric Company
notes: label: Description (Brief)
content: A plastic 6-pin base with top contact, domed envelope. Base stamped: “[RCA logo] Cunningham / Radiotron”. Donor’s card reads: “Sharp cutoff pentode made by the General Electric Company for the RCA-Cunningham interests. Glass type, used as a biased detector or a high gain amplifier in radio receivers. Heater: 6.3 volts at .3 amperes.”
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.324655
label: catalog number
content: 324655
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 1/2 in x 1 1/2 in; 11.43 cm x 3.81 cm