Marconi model CM294 radio tuner
date: label: date made
content: c 1917
label: date made
content: ca 1917
name: label: maker
content: Marconi Wireless Telegraph Co. of America
notes: label: Description (Brief)
content: Marked: "Short Wave Receiver / Made for Navy Dept. (Bu. / Steam Engineering) by / Marconi Wireless Telegraph / Co. of America / Rq. No. 23736 Date 1917 / Type NOCM294 / Serial no. [obliterated] / Wavelength 250-3100 M." Receiver has fixed inductance steps in both primary and secondary circuits with station tuning by means of variable capacitors. Wave length indicating pointers are utilized for both primary and secondary circuits. Tuned or untuned secondary circuits may be connected. External crystal detector or audion may be attached also. Appropriate switching provided for detector mode. REF: "Clymer-Greenwood", page 9. "Marconi wireless Telegraph Co. of America; Short Wave Receiver Type CM294". (Smithsonian Library - NMAH.)
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.320703
label: catalog number
content: 320703
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 11 1/2 in x 19 1/2 in x 10 in; 29.21 cm x 49.53 cm x 25.4 cm