Super Ondolina 384A (Leader) Feedback

SBR Société Belge Radio-Electrique, Bruxelles

  • Year
  • 1937/1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 187804

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 123.5 kHz; 2 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 130; 145; 220; 245 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21 cm = 8.3 inch
  • Power out
  • 3 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Super Ondolina 384A [Feedback] - SBR Société Belge Radio-
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Notes
    • The 384x feedback radios are the first at SBR to have a negative feedback circuit on the LF amplifier to improve the frequency response. However, this feature is disabled when playing a disc or when listening to the short waves.
  • Source of data
  • -- Original-techn. papers.
  • Author
  • Model page created by Dirk Bladt. See "Data change" for further contributors.

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