Carborundum model 30 radio frequency detectors
date: label: date made
content: ca 1929
name: label: maker
content: Carborundum Company
notes: label: Description (Brief)
content: Marked: "No. 30 / Carborundum Detector / Price $1.50 / The Carborundum Company / Niagara Falls, N.Y. / SE 44G." A pair of fixed carborundum external detectors. A binding post is on each end of the metal case. Reference: Radio Broadcast (March 1929), page 356, (advertisement); also Clymer-Greenwood, page 102.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, Niagara Falls
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.322061
label: accession number
content: 241556
label: catalog number
content: 322061
objectType: label: Object Name
content: radio frequency detector
label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: each: 2 3/4 in x 5/8 in; 6.985 cm x 1.5875 cm