• Year
  • 1922
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 37100
    • alternative name: Lee De Forest Mfg.

 Technical Specifications

  • Number of Tubes
  • 1
  • Main principle
  • TRF without regeneration
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: MR4 - DeForest Radio Telephone &
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
  • The De Forest Radio Telephone Combination Set MR-4 consisted of the MT-200 Tuner and the MP-100 Audion Control.
  • External source of data
  • Ernst Erb
  • Literature/Schematics (4)
  • Deforest Radio Equipment Catalog H page 13

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