Dayrad type 330 multi-frequency test oscillator
name: label: maker
content: Radio Products Company
notes: label: Description (Brief)
content: Radio Products Company "Dayrad" type 330 multi-frequency test oscillator in wooden case with leather carry handle. Two internal panels with test leads. Paper instructions / schematics inside lid. serial #15563, "Licensed to A.T.&T. Co.", vacuum tube is a National Union type NX-231L, no batteries are installed.
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.241556.346
label: accession number
content: 241556
label: catalog number
content: 241556.346
objectType: label: Object Name
content: radio transmitter
physicalDescription: label: Measurements
content: overall: 6 3/4 in x 10 1/4 in x 9 3/4 in; 17.145 cm x 26.035 cm x 24.765 cm