Ondolina Réseau 311 batteries

SBR Société Belge Radio-Electrique, Bruxelles

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  • Year
  • 1930
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 228645

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF (Tuned-Radio-Frequency but use of regeneration unknown); Neutrodyne
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 4 & 120 & -15 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Ondolina Réseau 311 [batteries] - SBR Société Belge Radio-
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Notes
    • This is the first SBR radio with built-in loudspeaker together with the Super Ondolina Réseau 351.
    • Internally, the radio is divided into 2 sections: the radio in the top half and the power supply in the bottom half of the housing.
    • There are 2 known generations of this radio: the 1st generation has a filament rheostat on the backside and without a voltmeter, the 2nd generation has a rheostat and a voltmeter on the frontpanel of the loudspeaker (see photos).
    • In case of the batteries version, the power supply section is left empty to make room for the (storage) batteries.
    • The AC mains version has an "Oxymétal"1 rectifier and a voltage selector for 110, 130 and 220V.
    • The DC mains 110V version and the DC mains 220V version have an internal resistor block to adjust to the mains voltage.
    • All versions of this radio still need an internal 15V negative grid voltage battery ("C" battery).

    1 "Oxymétal" (copper oxyd) rectifier.

  • Price in first year of sale
  • 2,660.00 BFr
  • Author
  • Model page created by Dirk Bladt. See "Data change" for further contributors.

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