ERLA crystal radio wave detector
notes: label: Description (Brief)
content: A cat's whisker and crystal holder mounted on a plastic board and covered by a metal can. The cover can be removed to view the internal structure. This is a module to be wired into a circuit board. Printed on can: "Fixed / Crystal / ERLA / Detector / Electrical Research / Laboratories".
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.241556.666
label: catalog number
content: 241556.666
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 3/8 in x 1 3/4 in x 1 in; .9525 cm x 4.445 cm x 2.54 cm