Music Master type UV199 triode with Na-Ald 419-X base
date: label: date made
content: ca 1924
name: label: maker
content: Music Master Corp.
label: maker
content: Alden Co.
notes: label: Description (Brief)
content: A tipless blue glass T-shaped tube set in a 4-pin bakelite base adaptor. Marked: "Music / Master / 9" on tube; base marked: "419 X Adaptor / Alden / Na-Ald / Bakelite / Patent Pending Made in U.S.A."
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Franklin Wingard
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.322574
label: catalog number
content: 322574
label: accession number
content: 241556
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: overall: 3 1/2 in x 1 1/4 in; 8.89 cm x 3.175 cm