• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1970 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 182618

• Number of Transistors
• 9

• Semiconductors

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

• Wave bands
• Broadcast plus 2 Short Wave bands.

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

• Loudspeaker
• 2 Loudspeakers / Ø 9.2 cm = 3.6 inch

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-912 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 270 x 144 x 62 mm / 10.6 x 5.7 x 2.4 inch

• Notes
• Sony TR-912;
  AM: 530 - 1.605 kHz,
  SW1: 2.3 - 7.5 MHz,
  SW2: 7.5 - 22 MHz, signal-meter.

• Net weight (2.2 lb = 1 kg)
• 1.450 kg / 3 lb 3.1 oz (3.194 lb)

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

• Other Models

• Here you find 4004 models, 3852 with images and 959 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo