TR-812

• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1960

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 77893

• Picture
• Schematics

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

• Number of Transistors
• 8

• Semiconductors
• 2T20 or. 2SA122 2T20 or. 2SA121 or. 2SA122 2T76 or. 2SC76 2T76 or. 2SC76 2T6 or. 2SD64 or. 2SD65 2T6 or. 2SD64 or. 2SD65 2T3 or. 2SB51 or. 2SB52 2T3 or. 2SB51 or. 2SB52 1T23 1T23

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Dry Batteries / D: 4 x 1.5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-812 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 260 x 178 x 95 mm / 10.2 x 7 x 3.7 inch

• Notes

• SW 1: 2 - 6 MHz, SW 2: 6 - 18 MHz.
  Speaker: 10 x 15 cm, 8 Ω

  The printing at the solid state devices often may lack the starting "2S.." in their type designation:

  A122 shall be read 2SA122, C76 means 2SC76 and so on.

• Net weight (2.2 lb = 1 kg)
• 2.4 kg / 5 lb 4.6 oz (5.286 lb)

• Price in first year of sale
• 18,000.00 Yen

• Source of data
• -- Schematic

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 536 Folder 11 6-1961)

• Literature/Schematics (2)
• -- Original prospect or advert (National Geographic, 1960 November, together with TFM121)

• Author
• Model page created by Robert Schmalstieg. See "Data change" for further contributors.

• Other Models

• Here you find 3993 models, 3854 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