• Country
• Japan

• Manufacturer / Brand
• Crown Radio Corp.; Tokyo

• Year
• 1969 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 251947

• • alternative name: Asahi Radio Mfg. Co., Ltd

• Number of Transistors
• 11

• Semiconductors

• Main principle
• Superheterodyne (common)

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

• Power type and voltage
• Line / Batteries (any type) / 117; 220 / UM-2: 4 × 1,5 Volt

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

• Power out
• 1 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: Portable 3 Band Radio TRF-2850 - Crown Radio Corp.; Tokyo

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

• Dimensions (WHD)
• 9.5 x 6.087 x 2.062 mm / 0.4 x 0.2 x 0.1 inch

• Net weight (2.2 lb = 1 kg)
• 4.3 lb (4 lb 4.8 oz) / 1.952 kg

• Mentioned in
• -- Original prospect or advert

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 354 models, 322 with images and 84 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Crown Radio Corp.; Tokyo