U.S. Army Signal Corps model SCR-55 radio signal detector
date: label: date made
content: c 1918
label: date made
content: ca 1918
name: label: maker
content: Western Electric
notes: label: Description (Brief)
content: Marked: "Signal Corps / U.S. Army / Vacuum Tube Detector Set / Type SCR 55 / Order No. W-40283 / Serial No. 591 / Made by / Western Electric Co., Inc." Specimen appears to be a straight vacuum tube detector designed for field army use. A single VT-1 type tube can be used (tube missing). Label on tube socket states: "100A Repeater Socket / Patent applied for". An external tickler coil may be used. Side panel opens for internal inspection. Schematic diagram located under top lid.
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.321033
label: catalog number
content: 321033
label: accession number
content: 241556
label: serial number
content: 591
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 7 1/4 in x 6 1/4 in x 7 in; 18.415 cm x 15.875 cm x 17.78 cm