• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1971 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 157022

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

• Number of Transistors
• 3

• Semiconductors

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

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / AA: 3 x 1.5 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-1825 [3 Transistors] - Sony Corporation; Tokyo

• Shape
• Design Radio or Novelty / Gadget - fancy or unusual shape.

• Dimensions (WHD)
• 92 x 92 x 92 mm / 3.6 x 3.6 x 3.6 inch

• Notes

• One IC; Cube-shaped case
  Available in three colors: white-yellow; white-green; white-red.

  See similar model TR-1825 with 6 Transistors.

• Price in first year of sale
• 17.95 USD

• Mentioned in
• -- Original prospect or advert (Sony Ad 1971)

• Literature/Schematics (1)
• Selezione Radio-TV Dezember 1972

• Author
• Model page created by Eduard Abfalterer. See "Data change" for further contributors.

• Other Models

• Here you find 3995 models, 3856 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