• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1983 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 236995

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• FM Broadcast Band Only

• Details
• Cassette-Recorder or -Player

• Power type and voltage
• Batteries / addl. power jack / AA: 1 x 1,5 / 1,5 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 0.09 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: FM Stereo Cassette Player Walkman WM-F20 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 111 x 74 x 22 mm / 4.4 x 2.9 x 0.9 inch

• Notes

• Sony Pocket FM Stereo Cassette Player Model WM-F20. (Walkman).
  Dolby NR.
  Made in Japan.

• Net weight (2.2 lb = 1 kg)
• 0.2 kg / 0 lb 7 oz (0.441 lb)

• Source of data
• -- Schematic

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 3995 models, 3856 with images and 959 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo