• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1981

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 133115

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 5

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Dry Batteries / 6 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Walkman Stereo Cassette Player WM-1 - Sony Corporation; Tokyo

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 160 x 95 x 37 mm / 6.3 x 3.7 x 1.5 inch

• Notes
• Transistors: 2SC1631, 2SC1631, 2SC1633, 2SC1633, 2SC1633.
  3 IC: BA526, BA526, AN6614.
  Accessories supplied: Stereo headphones MDR-1L1.
  Has sockets for two earpieces, battery indicator, CrO₂ / Normal switch. This was not the first Walkman as the numbering would suggest.

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

• Source of data
• - - Data from my own collection

• Literature/Schematics (1)
• -- Original-techn. papers.

• Other Models

• Here you find 4048 models, 3906 with images and 970 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo