Philips type ZIIB transmitting triode
date: label: date made
content: ca 1925
name: label: maker
content: Philips
label: Maker
content: Western Union Corporation
notes: label: Description (Brief)
content: A metal base with 4 banana pins, vertical assembly, tipless G-shaped envelope with neck. Stamped: "Philips / Z11B / 5517". Western Union catalog card reads: "Transmitting tube. / Philips type 22B no. 5517. / Filament 6.5V, 2.8 amp. / anode voltage 500/1000V, Current 60 mA / max anode dissipation 37.5 watts." Reference: https://www.radiomuseum.org/tubes/tube_z-iib.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.333073
label: accession number
content: 294351
label: accession number
content: 294351
label: catalog number
content: 333073
objectType: label: Object Name
content: Tube, Electron
label: Object Name
content: triode
label: Object Name
content: vacuum tube
label: Object Name
content: Philips type Z11B
label: Object Name
content: triode
physicalDescription: label: Measurements
content: overall: 5 1/8 in x 2 1/4 in; 13.0175 cm x 5.715 cm