Grebe type RORK 2-stage radio amplifier
date: label: date made
content: ca 1923
name: label: maker
content: A. H. Grebe & Co.
notes: label: Description (Brief)
content: Grebe type RORK 2-stage radio amplifier. Markings: (engraved on panel) Grebe Radio - Trade Mark / Richmond Hill, N.Y. / Type RORK / Serial No. 913. Plate reads: Manufactured Under / Grebe Patents / Current & Pending. A two-stage audio amplifier using A type tubes and having monitoring jacks on the front panel for detector, and first and second audio stages. Filament rheostat for each tube. Reference: Clark Collection CWC -A. Grebe catalog, 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.321696
label: catalog number
content: 321696
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
label: Object Name
content: audio amplifier
physicalDescription: label: Measurements
content: overall: 7 in x 8 in x 6 7/8 in; 17.78 cm x 20.32 cm x 17.4625 cm