Crystaloi crystal radio signal detector
date: label: date made
content: ca 1917
name: label: maker
content: Connecticut Telephone & Electric Company
notes: label: Description (Brief)
content: Marked: (Plate) "Crystaloi / Connecticut Tel. & Elec. Co. / Meriden, Conn. / Pat. June 29, 1915."; (on crystal unit) Pat. No. 1144399. Fixed crystal detector. Clamp mount (spring) below base. Two binding posts, one missing. Original sale price $3.50
label: Description (Brief)
content: Reference: National Radio Supply Catalog No. 3 (undated), page 59. US Patent 1144399, "Rectifying detector for wireless systems," issued to Eugene T. Turney, 25 June 1915.
label: Location
content: Currently not on view
place: label: place made
content: United States: Connecticut
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.321901
label: catalog number
content: 321901
label: accession number
content: 241556
label: patent number
content: 1144399
objectType: label: Object Name
content: radio receiver
label: Object Name
content: crystal radio
physicalDescription: label: Measurements
content: overall: 2 in x 2 1/4 in; 5.08 cm x 5.715 cm