Radio-Craft Radiophone D-4R Tablemodel Panel Set

DeForest Radio Telephone & Telegraph Co. (De Forest); New York

  • Year
  • 1922
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 37081
    • alternative name: Lee De Forest Mfg.

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Main principle
  • TRF with regeneration
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case, TUBES VISIBLE.
  • from Radiomuseum.org
  • Model: Radio-Craft Radiophone D-4R [Tablemodel Panel Set] - DeForest Radio Telephone &
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Two dials (primary tuning control knobs) This model was also available in a portable model see the Radiocraft model D-4.
  • Price in first year of sale
  • 35.00 $
  • External source of data
  • Ernst Erb
  • Literature/Schematics (1)
  • - - Manufacturers Literature

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