Cunningham type CX299 triode
date: label: date made
content: ca 1925
name: label: Maker
content: Western Union Corporation
label: maker
content: E. T. Cunningham, Inc.
notes: label: Description (Brief)
content: A 4-pin plastic base, long pins, tipless T-shaped envelope, silvered. In original box: "Cunningham / type CX-299 / Detector & Amplifier / Filament 3 V 0.06 Amp. / Plate volts (max) -90". Reference: https://www.radiomuseum.org/tubes/tube_cx299.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 Western Union Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.333219
label: accession number
content: 294351
label: accession number
content: 294351
label: catalog number
content: 333219
objectType: label: Object Name
content: Tube, Radio
label: Object Name
content: vacuum tube
label: Object Name
content: triode
physicalDescription: label: Measurements
content: box: 4 1/2 in x 1 3/4 in x 1 3/4 in; 11.43 cm x 4.445 cm x 4.445 cm
label: Measurements
content: tube: 3 5/8 in x 1 1/8 in; 9.2075 cm x 2.8575 cm