• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1990 ?

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 277770

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

• Details
• Remote Control (with wire or wireless)

• Power type and voltage
• Dry Batteries / 2 x 1,5 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: RM-839 - Sony Corporation; Tokyo

• Dimensions (WHD)
• 210 x 40 x 20 mm / 8.3 x 1.6 x 0.8 inch

• Net weight (2.2 lb = 1 kg)
• 0.150 kg / 0 lb 5.3 oz (0.33 lb)

• Author
• Model page created by Edoardo Sigismondo. See "Data change" for further contributors.

• Other Models

• Here you find 3992 models, 3853 with images and 957 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo