• Country
• United States of America (USA)

• Manufacturer / Brand
• Manhattan Electrical Supply Co. Inc. (Mesco); New York, NY

• Year
• 1912–1914

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 280708

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Sending Helix No. 484 - Manhattan Electrical Supply Co

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 7 x 12 x 7 inch / 178 x 305 x 178 mm

• Price in first year of sale
• 8.50 $

• Mentioned in
• 1912 Manual of Wireless Telegraphy Manhattan Electrical Supply Co. page 20

• Literature/Schematics (1)
• 1914 Manual of Wireless Telegraphy Manhattan Electrical Supply Co. page 23

• Author
• Model page created by Richard Groshong. See "Data change" for further contributors.

• Other Models

• Here you find 28 models, 27 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Manhattan Electrical Supply Co. Inc. (Mesco); New York, NY