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S221U20; Siera; Belgien (ID = 346982) Radio S221U20; Siera; Belgien (ID = 346987) Radio
S221U20; Siera; Belgien (ID = 346988) Radio S221U20; Siera; Belgien (ID = 346986) Radio
S221U20; Siera; Belgien (ID = 346989) Radio
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S221U20; Siera; Belgien (ID = 346982) Radio
Siera; Belgien: S221U20 [Radio] ID = 346982 933x700
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For model S221U20, Siera; Belgien
Country:  Belgium
Manufacturer / Brand:  Siera; Belgien
Year: 1949/1949 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: UCH21 UAF42 UAF42 UL41 UY41
schematic requested
Main principle Superheterodyne (common); ZF/IF 452 kHz
Wave bands Broadcast, Long Wave and Short Wave.
Power type and voltage Alternating Current supply (AC) / 110-220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 14 cm = 5.5 inch
Power out 6 W (unknown quality)
from Model: S221U20 - Siera; Belgien
Material Bakelite case
Shape Tablemodel, low profile (big size).
Dimensions (WHD) 450 x 300 x 185 mm / 17.7 x 11.8 x 7.3 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.
Source of data -- Collector info (Sammler)

Model page created by Júlio Branco. See "Data change" for further contributors.

All listed radios etc. from Siera; Belgien
Here you find 434 models, 394 with images and 176 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.