Walkman Stereo Cassette Player WM31

Sony Corporation; Tokyo

  • Year
  • 1986 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 147491

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Cassette-Recorder or -Player
  • Power type and voltage
  • Dry Batteries / 2 x 1,5 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Walkman Stereo Cassette Player WM31 - Sony Corporation; Tokyo
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 120 x 88 x 33.5 mm / 4.7 x 3.5 x 1.3 inch
  • Notes
  • Power Output 15+15 mW.
    Frequency response 40-14000 Hz (CrO2/Metal),
    40-14000 Hz (Normal). 4-track 2-channel stereo.
  • Net weight (2.2 lb = 1 kg)
  • 0.2 kg / 0 lb 7 oz (0.441 lb)
  • Source of data
  • - - Manufacturers Literature
  • Mentioned in
  • -- Original-techn. papers.
  • Author
  • Model page created by Eero Ukkola. See "Data change" for further contributors.

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