Tuning Lamp

Marconi's Wireless Telegraph Co. Ltd.

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  • Year
  • 1912 ??
  • Category
  • Radio module pre 1926 (not a part, not a key)
  • Radiomuseum.org ID
  • 326325

 Technical Specifications

  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown)
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast and LongWave in ONE range.
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Tuning Lamp - Marconi's Wireless Telegraph
  • Shape
  • Miscellaneous shapes - described under notes.
  • Notes

  • Tuning indicator for adjustment of antenna tuning in spark transmitters, used with smaller Marconi ship installations.

    A variable inductance is connected in series with the antenna. In parallel to the inductance there's a 4V incandescent lamp. At its maximum brightness, the antenna current is in resonance.

  • Mentioned in
  • Hawkhead: Handbook of Technical Instruction for Wireless Telegraphists, 2nd ed. (1915)
  • Author
  • Model page created by Nikolaus Löwe. See "Data change" for further contributors.

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