National / US Navy type CN 240 radio tuner
date: label: date made
content: 1917
name: label: maker
content: National Electrical Supply Company
notes: label: Description (Brief)
content: A naval radio receiver with two large dials, two variable resistance dials with continuous sweeps and multi-taps, four centrally-mounted small dials with pointers, a toggle switch, and a push-pull switch. Three pairs of shunts are on the front, two of which have connectors. A row of ten binding posts are arranged vertically along the right side of the front panel and a dial is in the lower right corner. Wood case, plastic panel. Nameplate reads: "Radio Receiver / Type CN 240 Serial No. 12 / [lambda] 1000M to 10,000 M / Made for / Bureau of Steam Engineering / --- By --- / National Electric Supply Co. / Washington, D.C. / Req. No. 642U.S.A. Cont. No. 95 / Date 7-25-17".
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.321094
label: catalog number
content: 321094
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 15 1/8 in x 23 3/4 in x 11 in; 38.4175 cm x 60.325 cm x 27.94 cm