Moorhead / De Forest type ER triode and socket
date: label: date made
content: ca 1920
name: label: maker
content: Moorhead Laboratories
notes: label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Hallam E. Mendenhall
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1988.0695.19
label: catalog number
content: 1988.0695.19
label: accession number
content: 1988.0695
objectType: label: Object Name
content: Vacuum Tube/Electron
label: Object Name
content: vacuum tube
physicalDescription: label: Physical Description
content: manufactured (overall style)
label: Physical Description
content: molded (overall production method/technique)
label: Measurements
content: overall: 4 1/4 in x 3 1/2 in x 2 1/4 in; 10.795 cm x 8.89 cm x 5.715 cm
label: Measurements
content: socket: 1 3/4 in x 3 1/2 in x 2 1/4 in; 4.445 cm x 8.89 cm x 5.715 cm
label: Measurements
content: tube: 4 in x 1 3/4 in; 10.16 cm x 4.445 cm