Magnetic Recording Head
date: label: date made
content: ca 1948
name: label: maker
content: Brush Development Co.
notes: label: Description (Brief)
content: This “Red Head” recording-playback head was designed by Brush Company around 1950 for sale to tape recorder manufacturers. Inside the housing is a small, specially-shaped electromagnet designed to produce a focused magnetic field. When recording, a current fed into the head varied according to the strength of the input signal and that variation was captured by the recording tape. For playback, the magnetic field on the tape generated a signal in the head as it passed close. The closer the playback signal matched the input signal, the more accurate the recorded sound.
label: Location
content: Currently not on view
setName: label: See more items in
content: Work and Industry: Electricity
label: See more items in
content: Magnetic Recording
label: See more items in
content: Communications
creditLine: label: Credit Line
content: from Ruth W. Begun, in memory of Semi J. Begun
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1995.0316.15
label: accession number
content: 1995.0316
label: catalog number
content: 1995.0316.15
objectType: label: Object Name
content: recording device
label: Object Name
content: tape recorder component
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 1/2 in x 1/2 in x 9 in; 1.27 cm x 1.27 cm x 22.86 cm