• Country
• United States of America (USA)

• Manufacturer / Brand
• Murdock, WM.J. Co.; Chelsea

• Year
• 1911

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

• Radiomuseum.org ID
• 280698

• • alternative name: William J. Murdock Co.

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Spark Gap No. 441 - Murdock, WM.J. Co.; Chelsea

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 8.5 x 3.5 x 4 inch / 216 x 89 x 102 mm

• Price in first year of sale
• 5.00 $

• Mentioned in
• 1911 Murdock catalog No. 8

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

• Other Models

• Here you find 88 models, 70 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Murdock, WM.J. Co.; Chelsea