RCA type 2MA-5 magnetic amplifier
date: label: date made
content: c. 1921
label: date made
content: ca 1921
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from the US Department of Defense, Department of the Army, the General Electric Company, and the Radio Corporation of Amercia
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.326652
label: catalog number
content: 326652
label: accession number
content: 261657
objectType: label: Object Name
content: Magnetic amplifier
label: Object Name
content: magnetic amplifier
physicalDescription: label: Measurements
content: with lid: 36 1/2 in x 36 in; 92.71 cm x 91.44 cm