• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1965 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 141337

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

• Number of Transistors
• 8

• Semiconductors
• 2SA70 2SA70 2SC76 2SC76 1T23 2SD65 2SD65 2SB51 2SB51

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

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Dry Batteries / 3 x 1,5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-820 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 200 x 105 x 55 mm / 7.9 x 4.1 x 2.2 inch

• Notes

• Sony TR-820; Internal Ferrite antenna for MW and Telescopic antenna for SW.

  SW: 3.9 ... 12 MHz (75 ... 25 m band)
  MW: 530 ... 1600 kHz (566 ... 190 m band)

• Net weight (2.2 lb = 1 kg)
• 0.9 kg / 1 lb 15.7 oz (1.982 lb)

• Source of data
• - - Manufacturers Literature

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 3952 models, 3812 with images and 954 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo