CRF-230 B

• Country
• Japan

• Manufacturer / Brand
• Sony Corporation; Tokyo

• Year
• 1972–1979 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 142089

• Picture
• Schematics

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

• Number of Transistors
• 48

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 1600-2200/455 kHz; Special type of reception - please describe.

• Wave bands
• Broadcast, Long Wave, more than 2 x SW plus FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / 100; 120; 220; 240 / 6 × 1,5 D / 12 Volt

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

• Power out
• 3 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: CRF-230 B - Sony Corporation; Tokyo

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

• Dimensions (WHD)
• 425 x 315 x 170 mm / 16.7 x 12.4 x 6.7 inch

• Notes

• Double conversion for bands SW2 to SW19, switchable fixed frequency 1st LO,
  variable 1st IF tunes from 1.6 to 2.2 MHz. Variable 2nd LO. 2nd IF 455 kHz.
  5-gang variable condenser for all tuned circuits
  (2x RF, 2x 1st IF, 2nd LO; CV301-CV305 in schematic).
  LW, MW and SW1 uses single conversion circuitry.
  FM front-ends without RF preamplifier. FM-IF 10.7 MHz.
  See also model CRF-230 with different FM front-end (has RF preamplifier).
  Speaker: 2× 12×8 cm.

  23 gammes. 4× FETS, 27× transistors réception, 17× auxiliaires. Différences avec CRF-230: 2 tuners FM, mais sans ampli RF (moins sensible que le CRF-230), SW1 1,6 à 4,2 MHz, sinon AM comme le CRF-230.
   

• Net weight (2.2 lb = 1 kg)
• 14 kg / 30 lb 13.4 oz (30.837 lb)

• Price in first year of sale
• 6,000.00 FF

• Source of data
• -- Original-techn. papers.

• Author
• Model page created by Olivier Palix. See "Data change" for further contributors.

• Other Models

• Here you find 3977 models, 3837 with images and 955 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sony Corporation; Tokyo