• Country
• United States of America (USA)

• Manufacturer / Brand
• Jefferson Electric Mfg. Co.; Chicago (IL)

• Year
• 1917

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

• Radiomuseum.org ID
• 318339

• Wave bands
• - without

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Jefferson Spark Coil - Jefferson Electric Mfg. Co.;

• Shape
• Tablemodel, with any shape - general.

• Notes

• Jefferson Electric wireless spark transformer. 

   

• Mentioned in
• -- Original prospect or advert (December, 1917 Gas Power magazine page 45)

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

• Other Models

• Here you find 9 models, 8 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Jefferson Electric Mfg. Co.; Chicago (IL)