• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1970

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 129662

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 8

• Semiconductors

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

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Power type and voltage
• Line / Batteries (any type) / 110/120; 220/250 / 4 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-33L - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 270 x 170 x 110 mm / 10.6 x 6.7 x 4.3 inch

• Notes
• Sony 8 Transistor 7R-33L;
  Tone control, fine-tuning, 3 W power consumption,
  LW: 150 - 285 kHz,
  MW: 530 - 1605 kHz,
  SW1: 4.5 - 12 MHz,
  SW2: 11.5 - 22 MHz.

• Other Models

• Here you find 3989 models, 3849 with images and 956 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo