U.S. Navy type SE998 radio receiver
date: label: date made
content: 1918
name: label: maker
content: National Electrical Supply Company
notes: label: Description (Brief)
content: Marked: "Radio Receiver / Type 998 SE / Serial No. 39N / [lambda] 50-600 meters / Made for Bureau of Steam / Engineering by National Electric / Supply Co., Washington DC. / Req. No. 553SE Cont. No. 35979 / Date: 1918". Wavelength range of this receiver is 50-600 meters with loading coil binding posts short circuited. Wavelength range is 100-1000 meters in combination with radio compass coil. Otherwise circuit is essentially a modified SE 143 receiver. Instrument was designed for the reception of spark signals or for the reception of CW using an audion control box as a detector. Tuning controls include primary and secondary switch taps and variable capacitors. An inductive coupler and a tickler control (for use with audion) are also employed. Reference: "U.S. Navy Special Short Wave Radio Receiver Type SE998" (Radio Test Shop - Navy Yard - Washington, DC, 2/28/18). "Clark Collection": CWC 46-1526A.
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.320944
label: catalog number
content: 320944
label: accession number
content: 241556
label: serial number
content: SE998
objectType: label: Object Name
content: radio receiver
label: Object Name
content: receiver, radio
physicalDescription: label: Measurements
content: overall: 13 in x 23 in x 14 1/2 in; 33.02 cm x 58.42 cm x 36.83 cm