Monodic Ch= S50 5 tube console version

Electrical Research Laboratories Inc. (Erla); Chicago, Illinois

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  • Year
  • 1926
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 38151

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF without regeneration; Neutrodyne
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 5 & 45 & 90 & 9 Volt
  • Loudspeaker
  • -Loudspeaker incorporated, but system not known.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Monodic Ch= S50 [5 tube console version] - Electrical Research
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes

  • Horn-loaded speaker inside on top of the radio chassis.

    3 RF stages.

    2 dial - 3 tuning capacitors. The right hand dial drives 2 tuning capacitors. 

    Grid-leak detector.

    There is also a version with 6 tubes. The exact difference is not known although it might be the number of AF stages.

    *** the type plate states: Manufactured under patent applications of the Radio Frequency Laboratories, Boonton. (RFL)

  • Price in first year of sale
  • 129.00 $
  • External source of data
  • Ernst Erb

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