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Visualization of the magnetic field on a stereo cassette containing a 1 kHz audio tone. Individual high-frequency magnetic domains are visible.
Visualization of the magnetic field on a stereo cassette containing a 1 kHz audio tone. Individual high-frequency magnetic domains are visible.
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A reel-to-reel tape recorder from Akai, c. 1978
A reel-to-reel tape recorder from Akai, c. 1978
An early experimental non-magnetic tape recorder patented in 1886 by Alexander Graham Bell's Volta Laboratory.
An early experimental non-magnetic tape recorder patented in 1886 by Alexander Graham Bell's Volta Laboratory.
Prototype of the Goodale tape recorder. The patent is based on this machine.
Prototype of the Goodale tape recorder. The patent is based on this machine.
This tape recorder of Dr. Goodale is exhibited in the private Phonograph Museum in Mariazell, Austria.
This tape recorder of Dr. Goodale is exhibited in the private Phonograph Museum in Mariazell, Austria.