Grebe type CR-8 radio receiver
date: label: date made
content: 1922
name: label: maker
content: A. H. Grebe & Co.
notes: label: Description (Brief)
content: Marked: "Grebe Radio / Richmond Hill, N.Y. / Type CR-8 / 150 to 1000 M. / Serial No. 868." Plate: "Licensed Under Armstrong Patent No. 1113149 Oct. 6, 1914 / For Amateur or Experimental Use Only. / Manufactured Under Grebe Patents / Granted and Pending." Unit employs a single 201-A type tube in the Armstrong regenerative tuned grid and plate circuit. Wavelength range is divided into three bands, 150-375, 280-650, and 600-1000 M. Second and third ranges are obtained with the addition of two small mica condensers. The antenna inductance of this unit is varied with two rotary multi-point switches. Reference: A.H. Grebe Co. Catalog leaflet, "Short Wave Regenerative Receivers," 1922.
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.321294
label: catalog number
content: 321294
label: accession number
content: 241556
label: serial number
content: 868
label: patent number
content: 1113149
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 7 1/4 in x 23 in x 7 1/2 in; 18.415 cm x 58.42 cm x 19.05 cm