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The erase head is powered during recording from a high frequency source (usually the same oscillator that provides the AC bias). In some inexpensive cassette recorder designs, the erase head is a permanent magnet that is mechanically moved into contact with the moving tape only during recording.
In 1982, the flagship head unit was the TD-1200 cassette receiver which incorporated a drawer-mounted, top-loading cassette mechanism with NAAC (like the Dragon), Dolby B and Dolby C. The TD-800 was introduced in 1984, a nearly identical cassette receiver, however, implementing a much simpler transport without manual tape reverse and known for ...
Frequency response and noise analysis of Nakamichi ZX Metal Particle Type IV cassette tape using the Nakamichi LX-5 three-head cassette deck. Pure metal particles have an inherent advantage over oxide particles due to 3–4 times higher remanence, very high coercivity and far smaller particle size, resulting in both higher MOL and SOL values.
Cassette decks reached their pinnacle of performance and complexity by the mid-1980s. [citation needed] Cassette decks from companies such as Nakamichi, Revox, and Tandberg incorporated advanced features such as multiple tape heads and dual capstan drive with separate reel motors. Auto-reversing decks became popular and were standard on most ...
Azimuth recording is the use of a variation in angle between two recording heads that are recording data so close together on magnetic tape that crosstalk would otherwise likely occur. Normally, the head is perpendicular to the movement of the tape, and this is considered zero degrees.
A person enters the JPMorgan Chase & Co. New York Head Quarters in Manhattan, New York City, U.S., June 30, 2022. REUTERS/Andrew Kelly/File Photo (Reuters / Reuters)
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The design and quality of the recorder are also important factors. The machine's speed stability (wow-and-flutter), head gap size, head quality, and general head design and technology. and the machine's mechanical alignment [b] affect the quality of the recording. The regulation of tape tension affects contact between the tape and the heads and ...