• Country
• United States of America (USA)

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

• Year
• 1909

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 294025

• • Brand: Radak

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Adjustable Spark Gap - Clapp-Eastham Co.; Cambridge,

• Shape
• Tablemodel, with any shape - general.

• Price in first year of sale
• 5.00 $

• Mentioned in
• -- Original prospect or advert (July, 1909 Electrician and Mechanics magazine page viii)

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

• Other Models

• Here you find 130 models, 106 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