U.S. Army Signal Corps radar crystal
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: EM.313259
label: accession number
content: 175549
label: catalog number
content: 313259
objectType: label: Object Name
content: radar crystal
label: Object Name
content: Crystal (mixes echo and local oscillator waves)
label: Object Name
content: crystal