• Country
• Japan

• Manufacturer / Brand
• Rota Corp. (Risui Corp.); Tokyo

• Year
• 1972 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 300796

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 200; 220 Volt

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

• Power out
• 25 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Stereo Amplifier OTL-2200 - Rota Corp. Risui Corp.; Tokyo

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 350 x 98 x 220 mm / 13.8 x 3.9 x 8.7 inch

• Net weight (2.2 lb = 1 kg)
• 2.3 kg / 5 lb 1.1 oz (5.066 lb)

• Author
• Model page created by Alberto Spada. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Rota Corp. (Risui Corp.); Tokyo