Nelson Grand Four Valve Cat. No. W 90300

Efescaphone (Brand), Falk, Stadelmann & Co. Ltd.; London

  • Year
  • 1924/1925 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 201377
    • Brand: Efescaphone

 Technical Specifications

  • Number of Tubes
  • 4
  • Valves / Tubes
  • Main principle
  • TRF with regeneration; 2 AF stage(s)
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Nelson Grand Four Valve Cat. No. W 90300 - Efescaphone Brand, Falk,
  • Shape
  • Tablemodel, slant panel.
  • Dimensions (WHD)
  • 18.5 x 22 x 13 inch / 470 x 559 x 330 mm
  • Notes
  • Nelson Grand Four Valve Regenerative Receiver comprising on High Frequency Stage, one Detector, and two Low Frequency Stages. 

    The fourth valve is controlled by a seperate switch enabling either three or four Valve operation. 

    The D. E. 5 or B. 4 Power Valve is specially suitable for the fourth stage. 

    Wave length range 150 to 4000 meters. 

    The Cabinet is of French Polished Mahogany. 

  • Price in first year of sale
  • 39.00 £
  • External source of data
  • Guest Eddie Moylan, Museum Listowel
  • Mentioned in
  • - - Manufacturers Literature (1924 Efescaphone Wireless catalog page 9)
  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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