• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1966–1970

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 163908

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

• Number of Transistors
• 8

• Semiconductors
• 2SA70 2SA121 2SC76 2SC76 2SD65 2SD65 2SB380 2SB380

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical / Ø 10 cm = 3.9 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-837 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 9.0625 x 4.33 x 1.9375 inch / 230 x 110 x 49 mm

• Notes

• Sony Model TR-837

  De luxe eight transistor, 3-band portable radio. Speaker 4" x 2½"; fine tune and tone controls; night light, tuning meter. Leather case. (MINGAY'S PRICE SERVICE)

  Price includes batteries.

• Net weight (2.2 lb = 1 kg)
• 0.950 kg / 2 lb 1.5 oz (2.093 lb)

• Price in first year of sale
• 94.50 AUS $

• Mentioned in
• Mingay's Price Service (Aug 1966 to Feb 1970.)

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Group C4, 1967, Page S12b.)

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

• Other Models

• Here you find 4018 models, 3875 with images and 965 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo