• Country
• Great Britain (UK)

• Manufacturer / Brand
• Ardente Acoustic Laboratories Ltd.; London

• Year
• 1949 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 250695

• Number of Tubes
• 4

• Valves / Tubes
• EF37 EF37 6V6 AZ31

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 200 - 240 Volt

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Amplifier 309 - Ardente Acoustic Laboratories

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 12 x 8 x 6 inch / 305 x 203 x 152 mm

• Notes

• Amplifier Type 309

  Made by Ardente Acoustic Laboratories Ltd, England

   

   

   

• Net weight (2.2 lb = 1 kg)
• 4.1 kg / 9 lb 0.5 oz (9.031 lb)

• Mentioned in
• Ardente for Sound Communications (from searching the Web)

• Author
• Model page created by Bruce Wilkie. 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 Ardente Acoustic Laboratories Ltd.; London