• Country
• Belgium

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 31077

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

• Number of Tubes
• 7

• Valves / Tubes
• 6D6 6A7 6D6 75 43 43 25Z5

• Main principle
• Superhet with RF-stage; ZF/IF 123 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Details
• Visual Tuning Indicator pre Eye

• Power type and voltage
• AC/DC-set / 110; 130; 140; 220; 240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 26 cm = 10.2 inch

• Power out
• 10 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Super Ondolina 837U - SBR Société Belge Radio-

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Notes
• • Very powerfull output with 2 tubes in push-pull and a 26 cm speaker behind an acoustic lens: around 10 Watt at 220V mains.
  • Contains an Urdox tube (12V 0.3A; brand not specified in the service manual) for the filaments.
  • In contrast with the 837A, this radio has an "Ombrograph" tuning indicator instead of a magic eye.

• Price in first year of sale
• 3,450.00 BFr

• Mentioned in
• Manuel de la Radio 1940, van Cortenberghe

• Literature/Schematics (4)
• -- Schematic

• Author
• Model page created by Bruno Brasseur. See "Data change" for further contributors.

• Other Models

• Here you find 711 models, 659 with images and 384 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from SBR Société Belge Radio-Electrique, Bruxelles