• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 97142

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

• Number of Tubes
• 4

• Valves / Tubes
• ECH3 EF9 CBL1 CY1 C1 or C9

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz; 1 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• AC/DC-set / 110-130; 200-225 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 17 cm = 6.7 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: S93L - Siera; Belgien

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 444 x 315 x 216 mm / 17.5 x 12.4 x 8.5 inch

• Notes

• 3 Band reception:

  • LW: 708 - 2000 m.
  • BC: 175 - 585 m.
  • SW: 13,8 - 51 m.
  Tuning scale light bulbs type: 2 x 8033D (5V, 200mA).
  Loudspeaker Philips type 9648. Connectors for second loudspeaker. There is no connector for a pick-up. AF feedback circuitry to reduce distortion.
  Current regulator C1 used for 200 - 225 V mains, C9 used for 110 - 130 V mains.
   
  The Manuel de la radio Cortenberghe lists this model as S93U which has the same properties as type S93L.

  This model is comparable with Jura 93U/L.

  Attention: chassis connected to the mains !

• Net weight (2.2 lb = 1 kg)
• 7.2 kg / 15 lb 13.7 oz (15.859 lb)

• Price in first year of sale
• 1,425.00 BEF

• Source of data
• Manuel de la Radio 1940, van Cortenberghe

• Mentioned in
• - - Manufacturers Literature (Siera memento of tubes and models 1932-1946)

• Literature/Schematics (1)
• Technisch- Commercieel - Radio Vademecum Staleman

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• Other Models

• Here you find 456 models, 414 with images and 188 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siera; Belgien