U.S. Navy type IP-500 radio receiver
date: label: date made
content: c 1922
label: date made
content: ca 1922
notes: label: Description (Brief)
content: No extant markings. Unit resembles Navy type IP-500 receiver of the WW I era. Wavelength range is in the area of 300 to 6800 meters. Technically this specimen is a tuner designed for use with a crystal detector or external audion control box. Panel controls include primary loading and tuning, stopper condenser, coupling plus secondary tuning, and inductance variation. Conventional binding posts on the panel for external circuit connections. Allied Van Lines shipping tag #68 on unit. Reference: Similar to IP500 listed in "RCA 1922 Catalog: Radio Enters the Home", page 64.
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.321074
label: catalog number
content: 321074
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 14 1/2 in x 23 in x 10 1/2 in; 36.83 cm x 58.42 cm x 26.67 cm