U.S. Navy / Adams Morgan type CR-1235 radio frequency detector
date: label: date made
content: 1919
name: label: maker
content: Adams-Morgan Co.
notes: label: Description (Brief)
content: U.S. Navy / Adams Morgan type CR-1235 silicon-antimony crystal radio frequency detector. A slate base on which is mounted a single crystal holder with two adjusters on one side, a plunger-type tensioner on the opposite side, a plate-type contact with adjustment knob, and two binding posts. Crystal of unknown type is in the holder. Stamped on base: “Silicon-Antimony Detector / Type CR1235 / Made for Navy Dept. (Bu.S.E.) / by / Adams-Morgan Co. 1919 / Serial No. 959”.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
creditLine: label: Credit Line
content: from Paul G. Watson
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.325334
label: catalog number
content: 325334
label: accession number
content: 252994
objectType: label: Object Name
content: Detector, Crystal
label: Object Name
content: radio receiver
label: Object Name
content: crystal radio
label: Other Terms
content: Detector, Crystal; Components; Radio and Television; Radio and Television
physicalDescription: label: Measurements
content: overall: 2 in x 5 1/2 in x 4 in; 5.08 cm x 13.97 cm x 10.16 cm