Grebe type CR-2 radio receiver
date: label: date made
content: ca 1922
name: label: maker
content: A. H. Grebe & Co.
notes: label: Description (Brief)
content: Marked: "Grebe Radio / Richmond Hill, N.Y. / Type CR-2". Plate: "Licensed Under Armstrong Patent 1113149, October 6, 1914. / Licensed under Marconi Patent 763772, June 28, 1904." Unit is essentially RF tuner, containing the coil section for an external regenerative detector. An antenna coupling circuit employs a five position rotary switch for varying inductance of antenna coil. A standard regeneration control is also included. Manufacturer recommended that this unit be used with the type RORH vacuum tube control unit. CR-2 sold for $51.00. Allied Van Lines shipping tag #15 on front panel. Reference: R.D. Pitts Company Catalog, 1922, page 43.
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.321030
label: catalog number
content: 321030
label: accession number
content: 241556
label: patent number
content: 1113149
label: patent number
content: 763772
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 7 in x 17 in x 7 3/8 in; 17.78 cm x 43.18 cm x 18.7325 cm