• Country
• Belgium

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

• Year
• 1935/1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 31070

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

• Number of Tubes
• 6

• Valves / Tubes
• 6D6 6A7 6B7 42 42 80

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

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Details
• Visual Tuning Indicator pre Eye

• Power type and voltage
• Alternating Current supply (AC) / 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
• 5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Super Ondolina 636A2 - SBR Société Belge Radio-

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

• Dimensions (WHD)
• 430 x 520 x 360 mm / 16.9 x 20.5 x 14.2 inch

• Notes
• • The 636x series radios has  a "Ombrograph"¹ (shadow tuning indicator).
  • They also have an automatic loudness control to compensate for the loss of sensitivity of the human ear in low and high frequencies at low soundlevels.
  • Silent tuning.
  • There are 2 output tubes in push-pull to provide for powerfull audio.
  • SBR produced the following models 636:
    • 636x2: table model with loudspeaker;
    • 636x3: luxury console;
    • 636x4: Luxury console with pickup from Marconiphone.

  where 'x' represents 'A' (AC mains) or 'U' (Universelle, AC/DC mains).

  ¹ derived from the French word "Ombre" (Shadow).

• Price in first year of sale
• 2,450.00 BFr

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

• Literature/Schematics (1)
• -- Schematic (Radio Schakelingen, J.G.R. van Dijck)

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

• Other Models

• Here you find 718 models, 666 with images and 393 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from SBR Société Belge Radio-Electrique, Bruxelles