• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1949/1949

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 117949

• Number of Tubes
• 5

• Valves / Tubes
• UCH21 UAF42 UAF42 UL41 UY41

• Main principle
• Superheterodyne (common); ZF/IF 452 kHz; 2 AF stage(s)

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

• Power type and voltage
• AC/DC-set / 110; 125; 200; 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16.5 cm = 6.5 inch

• Power out
• 6 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: S221U /20 - Siera; Belgien

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

• Dimensions (WHD)
• 450 x 310 x 220 mm / 17.7 x 12.2 x 8.7 inch

• Net weight (2.2 lb = 1 kg)
• 4 kg / 8 lb 13 oz (8.811 lb)

• Price in first year of sale
• 1,200.00 Esc.

• Author
• Model page created by Júlio Branco. 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