• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1970 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 156848

• Number of Transistors
• 8

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Line / Batteries (any type) / 230/ 3 x 1,5 Volt

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

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: 8 Transistor 7R-55 - Sony Corporation; Tokyo

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes
• Sony 7R-55 3 Band Solid State Super Sensitive 8 Transistor AC/Battery;
  MW: 530 - 1605 KHz,
  SW1: 2.3 - 7.5 MHz,
  SW2: 7.5 - 22 MHz,
  tone control, tuning indicator meter, earphones jack, 4 W mains power consumption, made in (S) Korea most probably for New Zealand/Australien market.

• 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