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S108U Holz

S108U; Siera; Belgien (ID = 504441) Radio S108U; Siera; Belgien (ID = 504442) Radio
S108U; Siera; Belgien (ID = 504443) Radio S108U; Siera; Belgien (ID = 504444) Radio
S108U; Siera; Belgien (ID = 1779870) Radio S108U; Siera; Belgien (ID = 2298523) Radio
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S108U; Siera; Belgien (ID = 504441) Radio
Siera; Belgien: S108U [Radio] ID = 504441 870x700
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For model S108U Holz, Siera; Belgien:
Bild von Wolfgang Bauer.
Country:  Belgium
Manufacturer / Brand:  Siera; Belgien
Year: 1943 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: UCH21 UCH21 UBL21 UY21
Main principle ZF/IF 452 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Power type and voltage AC/DC-set / see notes: (110) 125; (200) 220 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Model: S108U [Holz] - Siera; Belgien
Material Wooden case
Shape Tablemodel without push buttons, Mantel/Midget/Compact up to 14
Dimensions (WHD) 350 x 215 x 145 mm / 13.8 x 8.5 x 5.7 inch
2 Band reception:
  • BC: 192 - 575 m.
  • SW: 15 - 50 m.
Tuning scale light bulb type: 8095D (19V, 90mA).
Loudspeaker Philips type 9676. No connector for external loudspeaker or pick-up. 

The mains voltage selector has only 2 positions: 125 and 220 Volt. To select 110 or 200 Volt, R38 has to be shorted and the labels on the selector switch have to be exchanged.

This model is based on Philips model 205U [Holz], just like NSF model Aristona H128U.

There is also a Siera model S108U reported in a bakelite case, however it is unlikely that this ever existed. The booklet "Siera memento of tubes and models 1932-1946" only mentions the wooden model with a UY21 rectifier.

Attention: chassis connected to the mains !

Net weight (2.2 lb = 1 kg) 4.7 kg / 10 lb 5.6 oz (10.352 lb)
Mentioned in - - Manufacturers Literature (Siera memento of tubes and models 1932-1946)
Literature/Schematics (1) Radio Historisch Tijdschrift, Nr. 166, September 2018

Model page created by Martin Steyer. See "Data change" for further contributors.

All listed radios etc. from Siera; Belgien
Here you find 434 models, 393 with images and 178 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.