• Country
• United States of America (USA)

• Manufacturer / Brand
• Clapp-Eastham Co.; Cambridge, MA

• Year
• 1914–1922

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

• Radiomuseum.org ID
• 76426

• • Brand: Radak

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

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: D tuner - Clapp-Eastham Co.; Cambridge,

• Shape
• Chassis only or for «building in»

• Notes
• Variometer/-coupler with tapped primary and secondary.

• Price in first year of sale
• 25.00 $

• Source of data
• Radio Manufacturers of the 1920s, Vol 1

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

• Other Models

• Here you find 130 models, 107 with images and 3 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Clapp-Eastham Co.; Cambridge, MA