• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1984 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 164174

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

• Number of Transistors
• Semiconductors present.

• Semiconductors
• CX20091

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

• Wave bands
• Broadcast, Short Wave plus FM or UHF.

• Power type and voltage
• Batteries / addl. power jack / AA: 3 x 1,5 / DC: 4,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7.7 cm = 3 inch

• Power out
• 0.2 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: FM/MW/SW 3Bands Receiver ICF-25 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 194 x 92 x 34 mm / 7.6 x 3.6 x 1.3 inch

• Notes

• FM/MW/SW 3Bands Receiver

  • FM
    • 87,6 - 107 MHz (European countries)
    • 87,6 - 108 MHz (other countries
  • MW
    • 530-1605 kHz (566-187 m)
  • SW
    • 5950-18000 kHz (50,4-16,7 m)
  • Anntennas:
    • MW: Built-in ferrite bar antenna
    • FM/SW: Telescopic antenna
  • Speaker
    • Approx. 7,7 cm (3 inches) dia.
  • Power output
    • 200 mW (at 10% harmonic distortion)
  • Output
    • Earphone jack (minijack)
  • Power requirements
    • 4,5 V DC, three batteries, IEC designation R6 (size AA)
    • DC IN 4,5 V jack
  • Fine tuning knob for SW reception
  • One-Chip-Radio (no further semiconductors)

  Made in Malaysia.

• Net weight (2.2 lb = 1 kg)
• 0.460 kg / 1 lb 0.2 oz (1.013 lb)

• Literature/Schematics (1)
• -- Original prospect or advert

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

• Other Models

• Here you find 3933 models, 3793 with images and 950 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo