• Country
• United States of America (USA)

• Manufacturer / Brand
• Duck Co., J.J. and William B.; Toledo, OH

• Year
• 1921

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 84364

• Main principle
• Tuner pre 1926 (not a wave trap)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: A211 Unit Panel Short Wave Regenerative Tuner - Duck Co., J.J. and William B.;

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 15 x 6.5 x 0 inch / 381 x 165 x 0 mm

• Notes
• Unit Panel. Detector (Audion with Regeneration) required. Goes together with A212, A213, A214.

• Price in first year of sale
• 35.00 $

• External source of data
• William B.Duck Catalog No.16 (1921)

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

• Other Models

• Here you find 57 models, 34 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Duck Co., J.J. and William B.; Toledo, OH