• Year
  • 1938/1939
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 97133

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 128 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; 125; 145; 200; 220; 245 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21.5 cm = 8.5 inch
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: S51A - Siera; Eindhoven NL
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 520 x 300 x 235 mm / 20.5 x 11.8 x 9.3 inch
  • Notes
  • 3 Band reception:
    • LW: 708 - 2000 m.
    • BC: 186 - 585 m.
    • SW: 16,7 - 51 m.
    Tuning scale light bulbs type: 2 x 8045 (6,3V, 320mA).
    Loudspeaker Philips type 9636. Connectors for second loudspeaker and for pick-up. Tone control.
    This model can be upgraded to an AC/DC set (see type S51U) by incorporating a vibrator unit (Price: 250 BFr).
    This model is comparable with Jura TS51A and DUX V95.
  • Net weight (2.2 lb = 1 kg)
  • 12.6 kg / 27 lb 12.1 oz (27.753 lb)
  • Price in first year of sale
  • 135.00 Hfl
  • Mentioned in
  • - - Manufacturers Literature (Siera memento of tubes and models 1932-1946)
  • Literature/Schematics (1)
  • -- Original prospect or advert (Siera Radio Modèles 1939)
  • Literature/Schematics (2)
  • -- Original-techn. papers.
  • Author
  • Model page created by John Koster. See "Data change" for further contributors.

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