How to Demagnetize Cassette Deck Tape Heads

Written by james clark
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How to Demagnetize Cassette Deck Tape Heads
Keep cassettes playing normally by demagnetising the tape deck. (cassette image by Marek Kosmal from Fotolia.com)

Playing cassettes in a tape deck can cause an electromagnetic charge to build up over time, resulting in poor audio quality and an increased risk that the tape deck will devour and mangle the cassette. The magnetic charge can pull the tape away from the tape heads where it will quickly snarl inside the deck. A demagnetiser can be purchased at electronics and stereo stores for clearing the tape heads of the magnetic charge. Shaped like a cassette, the demagnetiser quickly alternates a positive and negative charge to neutralise magnetism so the tape deck will function normally.

Skill level:
Easy

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Things you need

  • Tape deck demagnetiser

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Instructions

  1. 1

    Open the tape deck door by pressing the "Eject" button.

  2. 2

    Insert the cassette-shaped demagnetiser into the tape compartment with the label side facing outward, and close the compartment door.

  3. 3

    Press the "Play" button on the front of the tape deck to run the demagnetiser for approximately 30 seconds, depending on the manufacturer's instructions.

  4. 4

    Remove the demagnetiser and store in the heavy metal shield that came with it. The protective shield helps prevent the device from accidentally erasing magnetic recordings.

Tips and warnings

  • Keep the demagnetiser away from cassette tapes.
  • Always replace the demagnetiser in its protective metal shield when not in use.

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