• Country
• Belgium

• Manufacturer / Brand
• SBR Société Belge Radio-Electrique, Bruxelles

• Year
• 1930

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 228658

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

• Number of Tubes
• 5

• Valves / Tubes
• A441N A442 A425 A415 B443

• Main principle
• Superheterodyne (common); 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: Super Ondolina Réseau 351 [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 Ondolina Réseau 311.
  • 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).
  • There is an alternative tubeset from Dario: R83 , R78 , R81 , R76 , R79.
  • This radio was delivered with a loop antenna 351.

  ¹ "Oxymétal" (copper oxyd) rectifier.

• Price in first year of sale
• 3,150.00 BFr

• Author
• Model page created by Dirk Bladt. See "Data change" for further contributors.

• Other Models

• Here you find 729 models, 676 with images and 406 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from SBR Société Belge Radio-Electrique, Bruxelles