• Country
• United States of America (USA)

• Manufacturer / Brand
• Coto Coil Manufacturing, Providence , RI

• Year
• 1923 ?

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 186975

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: 7000 tube socket - Coto Coil Manufacturing,

• Source of data
• - - Data from my own collection

• Author
• Model page created by Joseph Woychowski. See "Data change" for further contributors.

• Other Models

• Here you find 3 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Coto Coil Manufacturing, Providence , RI