• Country
• United States of America (USA)

• Manufacturer / Brand
• Amrad Corporation; Medford Hillside (MA)

• Year
• 1922

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

• Radiomuseum.org ID
• 197176

• • alternative name: American Radio & Research

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

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Variometer No. 2752 - Amrad Corporation; Medford

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 5 x 5 x 6 inch / 127 x 127 x 152 mm

• Notes
• Amrad Boxed variometer.

• Price in first year of sale
• 13.00 $

• Mentioned in
• Radio News (July 1922 page 119)

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 107 models, 81 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Amrad Corporation; Medford Hillside (MA)