Coherer Receiver - Marconi's first wireless receiver

Marconi's Wireless Telegraph Co. Ltd.

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  • Year
  • 1896
  • Category
  • Detector-Radio (Crystal or diode, without tubes/transistors)
  • Radiomuseum.org ID
  • 323042

 Technical Specifications

  • Power type and voltage
  • Dry Batteries
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Coherer Receiver - Marconi's first wireless receiver - Marconi's Wireless Telegraph
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 290 x 290 x 260 mm / 11.4 x 11.4 x 10.2 inch
  • Notes

  • One of the first wireless receivers, made by Marconi in 1896. It was used in his celebrated public demonstration of wireless in London’s Toynbee Hall in 1896.

    A coherer was linked to a device such as a recorder or a bell to register the signal and to a ‘tapper’. A mechanical tap to the coherer released its metal filings, making it non-conductive and ready to receive the next signal.

    Mounted in a steel box with front lid are the Coherer, tapper, relay and battteries, all mounted on a teak panel the slides out of the box.

    Powered from 6, Obach's Patent batteries in series.

    The relay is a Siemens Bros. & Co./London No. 12797.

     

  • Mentioned in
  • -- Collector info (Sammler) (Museum of the History of Science: Marconi Collection: Inv Num 86390)
  • Author
  • Model page created by Gary Cowans. See "Data change" for further contributors.

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