Magnetic Sheet Recorder

Description (Brief)
This unusual magnetic recorder was used an a dictation machine in the 1960s. The recording medium is a letter-sized sheet coated with a magnetic powder. The round plate on the machine carried the read-write head and spins under the stationary sheet. One can then fold the recording and mail it to the recipient. The donor’s father owned a business equipment store and acquired this piece as a marketing demonstration. In this instance, the product did not succeed in the market.
Currently not on view
Object Name
recording device
dictating machine
date made
ca 1962
Riken Optical
Physical Description
plastic (overall material)
metal (overall material)
vinyl (overall material)
paper (overall material)
glass (overall material)
foam rubber (overall material)
overall: 7 in x 10 1/4 in x 15 1/2 in; 17.78 cm x 26.035 cm x 39.37 cm
ID Number
accession number
catalog number
See more items in
Work and Industry: Electricity
Magnetic Recording
Data Source
National Museum of American History, Kenneth E. Behring Center


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