Audio & Sound
Showing all 2 results
-
1949 Magnetic Recorder Vintage T-Shirt
Sale!$29.00$24.99In 1949, C. N. Hickman invented a magnetic recorder. The present invention relates to electromagnetic apparatus, and more particularly to an apparatus for either recording or reading data across an elongated magnetizable element instead of lengthwise thereof.
-
1908 Vintage Magnetic Audio Recording Instrument T-shirt
Sale!$29.00$24.99J.C. Sherman in 1908, a patent for Instruments for Magnetically Recording Sound Vibrations. This invention relates to instruments by which articulate speech and other sounds are recorded by producing in a-record element varying degrees of magnetization corresponding to the sound vibrations.
Showing all 2 results