• Country
• Great Britain (UK)

• Manufacturer / Brand
• Quad (Brand); Acoustical Manufacturing Co. Ltd.; Huntingdon

• Year
• 1975

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 111593

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

• Number of Transistors
• 20

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 120; 130; 220; 230; 240 Volt

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

• Power out
• 100 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: 405 - Quad Brand; Acoustical

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 320 x 100 x 190 mm / 12.6 x 3.9 x 7.5 inch

• Notes
• Stereo- Endstufe mit (seinerzeit) neuer Schaltungstechnik (Current Dumping Amplifier).

• Net weight (2.2 lb = 1 kg)
• 9 kg / 19 lb 13.2 oz (19.824 lb)

• Source of data
• -- Collector info (Sammler)

• Mentioned in
• -- Original-techn. papers.

• Author
• Model page created by Lothar Wiemann. See "Data change" for further contributors.

• Other Models

• Here you find 38 models, 37 with images and 15 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Quad (Brand); Acoustical Manufacturing Co. Ltd.; Huntingdon