475

Central des Ondes, Les Radioélectriciens de France; Paris

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  • Year
  • 1934
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 198791

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 108 kHz; 2 AF stage(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 110-250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 21.5 cm = 8.5 inch
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 475 - Central des Ondes, Les
  • Shape
  • Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.
  • Dimensions (WHD)
  • 435 x 320 x 230 mm / 17.1 x 12.6 x 9.1 inch
  • Notes

  • Compensateur d'antenne. Circuit préselecteur. Blocs amovilbes.

    The radio employs a chassis with sub-modules: a power supply module (transformer with rectifier) and 3 completely closed modules with the tubes on top; the RF input and oscillator / mixer module with the valve 57; an IF module with the valve 58 and a detector AF module with the diode/penthode 2B7 and the final AF valve 2A5.

    The oscillator coil has been mounted on top of the oscillator / mixer module. The actuation of the MW-LW switch inside the module is done by a lever from the underside. The antenna input consists of a set of two high Q top-coupled resonance circuits. All IF transformers (108 kHz) and resistors - capacitors to operate the valves are inside the closed modules.

  • Price in first year of sale
  • 1,690.00 FRF
  • Mentioned in
  • -- Original prospect or advert (L'Ouest Éclair, 16.12.1934)
  • Author
  • Model page created by Nicolaas van Dijk. See "Data change" for further contributors.

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