[n: By Using Electric Or Magnetic Means] {g11b 3/12b} Patents (Class G9B/3.056)
  • Publication number: 20100080108
    Abstract: A tone arm assembly for use with a rotatable turntable. The tone arm assembly includes a tone arm body supported adjacent to the rotating turntable being horizontally pivotable about a vertically extending axis. A tone arm tube is provided having a longitudinal axis and a first end and a second end, the first end extending within and being supported by the tone arm body and the second end terminating at a shell for releaseably supporting a pick up cartridge. A counterweight is included which is translatable along a horizontal path parallel to the longitudinal axis of the tone arm tube between a first position and a second position, the first position being closest to the shell and a second position being farthest from the shell to adjust contact pressure between a stylus maintained by the pick up cartridge and a record supported by the rotatable turntable.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 1, 2010
    Inventor: Allen Perkins