• Country
• Switzerland

• Manufacturer / Brand
• Studer-Revox; Schweiz

• Year
• 1973

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 135821

• Number of Transistors
• 45

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Power out
• 120 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Quadro A 724 - Studer-Revox; Schweiz

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 355 x 151 x 240 mm / 14 x 5.9 x 9.4 inch

• Notes
• Quadro, 4×30 W. 20-20 000Hz. Keine Serienfertigung, nur Prototypen gebaut.

• Price in first year of sale
• 1,798.00 DM

• Source of data
• -- Original prospect or advert

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

• Other Models

• Here you find 70 models, 65 with images and 36 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Studer-Revox; Schweiz