• Country
• Japan

• Manufacturer / Brand
• Crown Radio Corp.; Tokyo

• Year
• 1962–1964

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 184722

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

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

• Number of Transistors
• 8

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Dry Batteries / 4 x 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm

• Power out
• 0.26 W (unknown quality)

• Material
• Various materials

• from Radiomuseum.org
• Model: TR-820 [8 Transistor] - Crown Radio Corp.; Tokyo

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

• Dimensions (WHD)
• 6 x 3 x 1 inch / 152 x 76 x 25 mm

• Notes
• Crown TR-820 AM / SW pocket radio with telescop antenna built-in for SW broadcast, metal front

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Eckhard Wegner. 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