• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1964

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 164003

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

• Number of Transistors
• 6

• Semiconductors
• 2SC73 2SC76 2SC76 2SD65 2SB379 2SB379 1T23

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.5 cm = 2.2 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-1820 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 150 x 85 x 38 mm / 5.9 x 3.3 x 1.5 inch

• Net weight (2.2 lb = 1 kg)
• 0.280 kg / 0 lb 9.9 oz (0.617 lb)

• Author
• Model page created by Salvador Galan-Ocaña. See "Data change" for further contributors.

• Other Models

• Here you find 3986 models, 3845 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