Recording head

Source: Wikipedia, the free encyclopedia.

A recording head is the physical interface between a recording apparatus and a moving recording medium. Recording heads are generally classified according to the physical principle that allows them to impress their data upon their medium. A recording head is often mechanically paired with a playback head, which, though proximal to, is often discrete from the record head.

Types

The two most common forms of recording head are:

Note that Magneto-optical recording, though using optics and heat, should properly be considered a magnetic process, since the data stored on magneto-optical media is stored magnetically.

Earlier systems, such as phonograph records, used mechanical heads known as styli to physically cut grooves in the recording medium, in a configuration (of size, width, depth and position) recoverable as sound.

Photo gallery

  • D6 HDTV VTR Scanner and video head, removed
    D6 HDTV VTR Scanner and video head, removed
  • Inside a D6 HDTV VTR Tape Deck, VTR Scanner and video head in place.
    Inside a D6 HDTV VTR Tape Deck, VTR Scanner and video head in place.
  • Type B videotape video Scanner Head
    Type B videotape video Scanner Head
  • Type B VTR, BCN 20 Tape Desk and video Scanner
    Type B VTR, BCN 20 Tape Desk and video Scanner
  • Quadruplex videotape Ampex AVR-2 Video Head
    Quadruplex videotape Ampex AVR-2 Video Head
  • Sony U-Matic Video head
    Sony U-Matic Video head
  • Ampex audio recorder
    Ampex audio recorder
  • VHS heads
    VHS heads
  • Nagra audio heads: erase, record and play
    Nagra audio heads: erase, record and play
  • Exposed head gap due to excessive head-wear. Sony UVW Betacam SP video heads
    Exposed head gap due to excessive head-wear. Sony UVW Betacam SP video heads

See also

External links