• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1980 ??

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 214059

• 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 / 4 x 1,5 / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Metal case

• from Radiomuseum.org
• Model: Secutive Portable Dictating Machine BM-11 - Sony Corporation; Tokyo

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

• Notes
• Sony Business Product Secutive BM-11 Portable Dictating Machine;
  Monitor & mic./rem. jack.

• Author
• Model page created by a member from A. 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