• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1984 ??

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 156003

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Line / Batteries (any type) / 3; 2 x 1,5 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Walkman DD WM-DD - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 110 x 80 x 30 mm / 4.3 x 3.1 x 1.2 inch

• Notes
• Aluminium Walkman mit Schutztasche, 2 Headphone-Anschlüsse, Betrieb mit 3V Netzadapter oder Batterie möglich. Spätere Nachfolgemodelle heissen "Quartz".

• Net weight (2.2 lb = 1 kg)
• 0.240 kg / 0 lb 8.5 oz (0.529 lb)

• Author
• Model page created by Guido Höh. See "Data change" for further contributors.

• 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