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A Maxell HE-44 cassette type demagnetizer. A cassette demagnetizer is a device that removes the magnetic field that accumulates during the use of audio cassettes in cassette decks. [1] [2] 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 tape head cleaner is a substance or device used for cleaning the record and playback heads of a magnetic tape drive found in video or audio tape machines such as cassette players and VCRs. [1] These machines require regular maintenance to perform properly.
USS Jimmy Carter in the magnetic silencing facility at Naval Base Kitsap for her first deperming treatment RMS Queen Mary arriving in New York Harbor, 20 June 1945, with thousands of U.S. soldiers – note the prominent degaussing coil running around the hull Control panel of the MES-device ("Magnetischer Eigenschutz" German: magnetic self-protection) in a German submarine Close-wrap deperming ...
The demagnetizing field, also called the stray field (outside the magnet), is the magnetic field (H-field) [1] generated by the magnetization in a magnet.The total magnetic field in a region containing magnets is the sum of the demagnetizing fields of the magnets and the magnetic field due to any free currents or displacement currents.
Philips DCC portable player. DCC signaled the parting of ways of Philips and Sony, who had previously worked together successfully on the audio CD, CD-ROM, and CD-i.The companies had also worked together on the Digital Audio Tape which was successful in professional environments, but was perceived as too expensive and fragile for consumers.
Maxell was formed in 1960, when a dry cell manufacturing plant was created at the company's headquarters in Ibaraki, Osaka.In 1961, Maxell Electric Industrial Company, Limited was created out of the dry battery and magnetic tape divisions of Nitto Electric Industrial Company, Limited (now Nitto Denko Corporation).
Three-head technology uses separate heads for recording and playback (the third of the three heads being the erase head). This allows different record and playback head gaps to be used. A narrower head gap is optimal for playback than for recording, so the head gap width of any combined record/playback head must necessarily be a compromise.
In classical electromagnetism, magnetization is the vector field that expresses the density of permanent or induced magnetic dipole moments in a magnetic material. Accordingly, physicists and engineers usually define magnetization as the quantity of magnetic moment per unit volume. [1]