Wireless Specialty type IP 203 crystal radio frequency detector
date: label: date made
content: ca 1919
label: date made
content: c 1919
name: label: maker
content: Wireless Specialty Apparatus Co.
notes: label: Description (Brief)
content: No extant manufacturer's marks. Plate missing. A three section crystal detector. All detectors are adjustable by a compound plunger spring contact mechanism. A four-point switch permits the connection of any desired detector into the receiving circuit, or the open circuiting of all detectors on transmissions. Unit is very similar to Navy type SE-183A crystal detector. Reference: Wireless Specialty Apparatus Co. Catalog (1919), page 37.
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.320846
label: catalog number
content: 320846
label: accession number
content: 241556
objectType: label: Object Name
content: Detector
label: Object Name
content: crystal detector
label: Object Name
content: radio receiver
label: Object Name
content: crystal radio
label: Other Terms
content: Detector; Radio
physicalDescription: label: Measurements
content: overall: 2 1/2 in x 5 3/4 in x 5 3/4 in; 6.35 cm x 14.605 cm x 14.605 cm