Marconi radio receiver
date: label: date made
content: c 1916
label: date made
content: ca 1915
label: date made
content: ca 1916
name: label: maker
content: Marconi Wireless Telegraph Co. Ltd.
notes: label: Description (Brief)
content: Marked: engraving: "M.W.T. Co. Ltd. / London / No. 3826." Specimen is the panel and internal structure of a Marconi Wireless Telegraph Company receiver dating from about 1916. The circuitry is essentially a crystal detector with optional valve usage. Among the panel controls are included a 5-tap loose coupling switch, antenna and ground binding posts, buzzer, two knife switches, tuning capacitors, potentiometer, and an ON-OFF battery switch. The crystal detector is missing from unit. Metal fittings appear to be of brass, and variable condensers are protected by hard rubber coverings.
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.321202
label: accession number
content: 241556
label: catalog number
content: 321202
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 11 in x 9 1/2 in x 5 in; 27.94 cm x 24.13 cm x 12.7 cm