Interpanel MR-6

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

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  • Year
  • 1922/1923
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 37102
    • alternative name: Lee De Forest Mfg.

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 6 & 16.5 & 18 & 19.5 & 21 & 22.5 & 67.5 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Interpanel MR-6 - DeForest Radio Telephone &
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 760 x 270 x 260 mm / 29.9 x 10.6 x 10.2 inch
  • Notes

  • The De Forest Radio Telephone & Telegraph Co. Combination Set MR-6 covered the 150-20,000 Meters wave length range. Wave change was accomplished by plug in honeycomb coils; Set consisting of a Multi Wave Tuner MT-200, an Audion Control Panel MP-100, and two One Step Audio Amplifiers MP-200.
    Radiocraft offered the same set legally as regenerative, while deForest continued to advertise it as non-regenerative.

  • Net weight (2.2 lb = 1 kg)
  • 12.5 kg / 27 lb 8.5 oz (27.533 lb)
  • Price in first year of sale
  • 112.00 $
  • External source of data
  • Ernst Erb
  • Literature/Schematics (2)
  • Radio Digest Illustrated, 1922 May 27, p. 5
  • Literature/Schematics (4)
  • Deforest Radio Equipment Catalog H page 13

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The model Interpanel is part of the collections of the following members.

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