Grebe type CR-1 radio receiver
date: label: date made
content: ca 1922
name: label: maker
content: A. H. Grebe & Co.
notes: label: Description (Brief)
content: Marked: "A.H. Grebe & Co. / Richmond Hill, N.Y. / Type CR-1." Electrically, the CR-1 comprises a rotary coupler in the antenna circuit with two six point rotary switches for the primary. Variometers are used in the grid and plate circuits, with the plate control employed to provide inductive feedback. An open filament rheostat is located on the bakelite front panel. Wavelength range of the CR-1 is 170-680 meters. Allied Van Lines shipping tag #25 on front panel. Reference: F.D. Pitts Co. Catalog, 1922, page 42. National Radio Supply Co. Catalog No. 3, p. 14.
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.321029
label: catalog number
content: 321029
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 7 in x 18 3/4 in x 6 3/4 in; 17.78 cm x 47.625 cm x 17.145 cm