• Country
• Japan

• Manufacturer / Brand
• Yamaha Co.; Hamamatsu

• Year
• 1991

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 208086

• • 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
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 10-16 Volt

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

• Power out
• 220 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: 4/3/2 Channel Power Amplifier YPA-720 - Yamaha Co.; Hamamatsu

• Dimensions (WHD)
• 300 x 55 x 241 mm / 11.8 x 2.2 x 9.5 inch

• Notes
• Car HiFi Verstärker. Sinus 45W+ 45W+ 45W+ 45W an 4 Ohm, 2x 110W gebrückt, Absicherung 1x 30A +1x 3A.

• Net weight (2.2 lb = 1 kg)
• 3.2 kg / 7 lb 0.8 oz (7.048 lb)

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

• Author
• Model page created by a member from D. See "Data change" for further contributors.

• Other Models

• Here you find 767 models, 734 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