Ondolina 4 (IV)

SBR Société Belge Radio-Electrique, Bruxelles

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  • Year
  • 1929
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 228302

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration; 1 AF stage(s); Neutrodyne
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries / 4 & 120 & -15 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Ondolina 4 - SBR Société Belge Radio-
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Notes
    • This radio would be a renewed version of the Ondolina 28 (3rd gen.) .
    • It could also be used with a M35 power supply when converted to use Réseau1 tubes.
    • A separate internal battery for negative grid voltage is always present, even when fed with a power supply.
    • There is a suspicion that the Ondolina IV is the same as Ondolina 28 (3rd gen.). In those years, SBR had the habit to use Roman numerals after the name for its advertisements, where those numerals stood for the number of tubes and never were mentioned on the type plate. There are multiple examples of those Roman numerals in the SBR section on this website.
    • The price is without tubes.

    1 Réseau tubes: from the French word "Réseau" = powergrid. Tubes that can be heated with AC current in contrast with battery tubes that are heated with DC current.

  • Price in first year of sale
  • 2,560.00 BFr
  • Author
  • Model page created by Dirk Bladt. See "Data change" for further contributors.

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