• Country
• Japan

• Manufacturer / Brand
• Yamaha Co.; Hamamatsu

• Year
• 1977/1978

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 157951

• • alternative name: Nippon Gakki

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 100 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Natural Sound Stereo Receiver CR-820 - Yamaha Co.; Hamamatsu

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 508 x 167 x 395 mm / 20 x 6.6 x 15.6 inch

• Notes
• Natural Sound AM/FM HiFi Receiver mit 2 x 50 Watt an 8 Ohm bei 0,05% Klirrgrad.
  Leistungsaufnahme 400 Watt.
  Gehäuse: Amerikanisch Nussbaum.

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 769 models, 736 with images and 380 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Yamaha Co.; Hamamatsu