QRS "Redtop Rectifier" tube
date: label: date made
content: ca 1926
name: label: maker
content: QRS Music Company
notes: 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.RSN80753U40
objectType: label: Object Name
content: Electron Tube, Diode
label: Object Name
content: rectifier
label: Other Terms
content: Electron Tube, Diode; Electron Tubes
physicalDescription: label: Measurements
content: electron tube, diode: 17.5 cm x 5 cm; 6 7/8 in x 1 15/16 in
label: Measurements
content: overall: 7 in x 2 1/8 in; 17.78 cm x 5.3975 cm