• Country
• United States of America (USA)

• Manufacturer / Brand
• Electro Importing Co. (Eico); New York City, NY

• Year
• 1911–1914

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

• Radiomuseum.org ID
• 286827

• 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 No. 9220a - Electro Importing Co. Eico;

• Shape
• Tablemodel, with any shape - general.

• Notes

• Electro Importing Adjustable Spark Gap No. 9220a

• Price in first year of sale
• 1.00 $

• Mentioned in
• -- Original prospect or advert (June, 1911 Modern Electrics magazine page 209)

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

• Other Models

• Here you find 62 models, 61 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Electro Importing Co. (Eico); New York City, NY