• Country
• United States of America (USA)

• Manufacturer / Brand
• Ritchie, E.S. & Sons, Brookline, Massachusetts

• Year
• 1915 ??

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

• Radiomuseum.org ID
• 349197

• Wave bands
• - without

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios)

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Induction Coil - Ritchie, E.S. & Sons,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Induction coil for wireless telegraphy.

• Mentioned in
• -- Original prospect or advert

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

• Other Models

• Here you find 4 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ritchie, E.S. & Sons, Brookline, Massachusetts