De Forest audion control box
date: label: date made
content: ca 1919
label: date made
content: c 1919
name: label: maker
content: De Forest Radio Telephone & Telegraph Co.
notes: label: Description (Brief)
content: Marked: "Audion Control Panel / Type P500 (?) / De Forest Radio Tel & Tel Co., N.Y." A De Forest triode normally fits into the socket on the front panel. Multipoint switch permits switching to audion or untraudion mode of detection. The latter was the De Forest label for a regenerative detector. Controls for this receiver include a filament rheostat, telephone binding posts, and battery terminals. REF: (Clark collection: SRM 15-035) "De Forest Radio Receiving Apparatus Catalog C", (1919) pages 41-42.
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.320709
label: catalog number
content: 320709
label: accession number
content: 241556
objectType: label: Object Name
content: radio receiver
physicalDescription: label: Measurements
content: overall: 7 5/8 in x 6 3/8 in x 9 in; 19.3675 cm x 16.1925 cm x 22.86 cm