A cassette demagnetizer is a device that removes the magnetic field that accumulates during the use of audio cassettes in cassette decks. The passage of magnetically charged tape over the metallic parts of the tape deck imparts a magnetic polarity that can reduce fidelity in recording and playback.
A cassette demagnetizer is a device that removes the magnetic field that accumulates during the use of audio cassettes in cassette decks. The passage of magnetically charged tape over the metallic parts of the tape deck imparts a magnetic polarity that can reduce fidelity in recording and playback.
Source: Wikipedia "Cassette demagnetizer" · CC BY-SA 4.0
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