Integrated Circuit Radio ICR-120

• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1969/1970

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 80614

• Picture
• Schematics

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

• Number of Transistors
• 3

• Semiconductors
• 2SC403 BX201 2SD187 2SB136

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

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / NiCd: 2 x 1.22 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.2 cm = 0.9 inch

• Material
• Metal case

• from Radiomuseum.org
• Model: Integrated Circuit Radio ICR-120 - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 49 x 33 x 18 mm / 1.9 x 1.3 x 0.7 inch

• Notes

• The Sony models ICR-90 and ICR-120 with 3 transistors, 1 IC (BX201) and two diodes IT26 as detectors are identical - except for the model name. The weight is 0.08 kg. They were released at the same time. The Earphone for it is model ME-25. The ICR-90 is the domestic model for the Japanese market, while the ICR-120 is the export model. There is one small difference in the packaging/accessories, though: being the domestic market model, the ICR-90 was shipped with the BC-90 Battery Charger, which is rated at AC 100 V 50/60 Hz input. As the export model, the ICR-120 shipped with one of two variations of the BC-120 Battery Charger. Those are the BC120W (service part number: Y-3826-01-1), which is rated at 117V AC 60Hz input, (primarily for the North American market), and the BC-120E (service part number: Y-3826-11-1), which is rated at 220V AC 50/60 Hz input.
  
  The ICR-100 was the first Sony radio with an integrated circuit and that predated the ICR-90/120 by about three years. November 1969 is given in a number of original Sony documents and in an internal "dictionary" for Sony employees.

  See also Philips' first IC radio IC-2000.

• Net weight (2.2 lb = 1 kg)
• 0.065 kg / 0 lb 2.3 oz (0.143 lb)

• Source of data
• -- Schematic

• Author
• Model page created by Wolfgang Bauer. See "Data change" for further contributors.

• Other Models

• Here you find 3913 models, 3773 with images and 947 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo