• Year
  • 1927–1933
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 8250
    • alternative name: Hekaphon

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF without regeneration
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Hartley-4 89554 - Czeija, Nissl & Co., Standard,
  • Dimensions (WHD)
  • 580 x 235 x 210 mm / 22.8 x 9.3 x 8.3 inch
  • Net weight (2.2 lb = 1 kg)
  • 8.6 kg / 18 lb 15.1 oz (18.943 lb)
  • External source of data
  • E. Erb 3-907007-36-0
  • Source of data
  • Radiokatalog Band 2, Ernst Erb

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The model Hartley-4 is part of the collections of the following members.

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