S-5 Dynatron 7 Tubes

Echophone Radio, Inc. - see also (The) Radio Shop or Hallicrafters Inc.

Data
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  • Year
  • 1930/1931
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 37958
    • Brand: Ufonic

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 175 kHz
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: S-5 Dynatron [7 Tubes] - Echophone Radio, Inc. - see
  • Shape
  • Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).
  • Notes
  • Push-pull af output stage. Reference for the date: "Los Angeles Radio Manufacturing" by Floyd A. Paul. (1988), page 13: shows that in Autumn 1930, Echophone moved at least the production from Hollywood to Illinois and for December show in a service manual from December 1930 the chassis of S-3, S-4, S-5 and F. The schematic diagram of S-3 has a date of 9-5-30. For S-5 there is also the 8 tube version.
  • Price in first year of sale
  • 69.00 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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