• Country
• Great Britain (UK)

• Manufacturer / Brand
• Amplion (Brand), Alfred Graham & Co., Graham Amplion Ltd., Amplion (1932) Ltd.; London

• Year
• 1925

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 192605

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Horn / Ø 19 inch = 48.3 cm

• Material
• Various materials

• from Radiomuseum.org
• Model: Concert AR-21 - Amplion Brand, Alfred Graham &

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 480 x 510 x 540 mm / 18.9 x 20.1 x 21.3 inch

• Notes
• Polished oak trumpet, enamelled pressed steel sound conduit. Electro-plated base and plated fittings. 250/1000 Ohms switchable. Similar model AR 23 with 500/2000 Ohms. Price GBP 8/10/0; Extra for Mahogany Trumpet 8s.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Literature/Schematics (1)
• Brown Brothers Catalog 1925

• Author
• Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

• Other Models

• Here you find 100 models, 78 with images and 9 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Amplion (Brand), Alfred Graham & Co., Graham Amplion Ltd., Amplion (1932) Ltd.; London