Cunningham / General Electric type C299 triode in socket adapter
name: label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A 4-pin plastic base, short pins, tipless T-shaped envelope, silvered. Stamped on base: "Cunningham / C-299 / Licensed only to extent indicated on carton". GE logo stamped on envelope. Set in a socket adapter, wear marks on outside of adapter obscure the maker's marks. Push and turn to remove. Reference: https://www.radiomuseum.org/tubes/tube_c299.html.
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.RSN80753U07
objectType: label: Object Name
content: Electron Tube, Triode
label: Object Name
content: triode
label: Other Terms
content: Electron Tube, Triode; Electron Tubes
physicalDescription: label: Measurements
content: electron tube, triode: 3 1/4 in x 3 3/16 in x 1 in; 8.255 cm x 8.128 cm x 2.54 cm
label: Measurements
content: overall: 4 in x 1 3/8 in; 10.16 cm x 3.4925 cm
label: Measurements
content: overallsocket only: 1 1/2 in x 1 3/8 in; 3.81 cm x 3.4925 cm