• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1990

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 117663

• 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 × 1,5 Volt

• Loudspeaker
• - only for Earphone!

• Material
• Metal case

• from Radiomuseum.org
• Model: WM-DD33 - Sony Corporation; Tokyo

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

• Notes
• Das "jüngste" Gerät welches auf dem legendären DD-Chassis basiert.

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

• Author
• Model page created by Christian Bruckner. See "Data change" for further contributors.

• Other Models

• Here you find 3913 models, 3773 with images and 947 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo