• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1946

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 99043

• Number of Tubes
• 5

• Valves / Tubes
• ECH4 EF9 EBL1 AZ1 EFM1

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz

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

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21.5 cm = 8.5 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: S123A - Siera; Belgien

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

• Dimensions (WHD)
• 510 x 390 x 220 mm / 20.1 x 15.4 x 8.7 inch

• Notes
• 3 Band reception:
  • LW: 720 - 2000 m.
  • BC: 185 - 585 m.
  • SW: 16,7 - 51 m.
  Tuning scale light bulbs type: 8045D (6,3V, 320mA).
  Loudspeaker Philips type 9636 or 9682. Connectors for second loudspeaker and for pick-up. 
   

• Net weight (2.2 lb = 1 kg)
• 12 kg / 26 lb 6.9 oz (26.432 lb)

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

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

• Other Models

• Here you find 452 models, 413 with images and 181 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siera; Belgien