• Country
• United States of America (USA)

• Manufacturer / Brand
• Wireless Improvement Co.; New York City, New York

• Year
• 1920 ?

• Category
• Commercial Transmitter (TX not Transceiver)

• Radiomuseum.org ID
• 195100

• Main principle
• Transmitter

• Tuned circuits
• 1 AM circuit(s)

• Power type and voltage
• Direct Current supply (DC) / 110 Volt

• Loudspeaker
• - - No sound reproduction output.

• from Radiomuseum.org
• Model: Spark Telegraphy Transmitter - Wireless Improvement Co.; New

• Shape
• Tablemodel, with any shape - general.

• Notes
• A built-in Motor-Generator converts a 110 V DC voltage into 500 cycle AC voltage. This Spark Transmitter is used for Telegrapy Operation only.

• Mentioned in
• Principles of Radio Communication, J.H. Morecroft, 1921

• Author
• Model page created by Hans-Joachim Korn † 16.11.15. See "Data change" for further contributors.

• Other Models

• Here you find 18 models, 15 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Wireless Improvement Co.; New York City, New York