• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1985 ?

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 155036

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Batteries / addl. power jack / AA: 2 x 1.5 / 3 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

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

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

• Dimensions (WHD)
• 80 x 33 x 110 mm / 3.1 x 1.3 x 4.3 inch

• Notes

• Geräteausführung in schwarz, silber oder rot, mit Gürteltasche

• 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 3960 models, 3820 with images and 954 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo