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S53A

S53A; Siera; Belgien (ID = 1014938) Radio
 
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S53A; Siera; Belgien (ID = 292875) Radio S53A; Siera; Belgien (ID = 292876) Radio
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S53A; Siera; Belgien (ID = 292875) Radio
Siera; Belgien: S53A [Radio] ID = 292875 864x546
Select picture or schematic to display from thumbnails on the right and click for download.
For model S53A, Siera; Belgien
 
Country:  Belgium
Manufacturer / Brand:  Siera; Belgien
Year: 1938/1939 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 6: EK2 EF9 EBC3 EBL1 EM1 AZ1
Main principle Superheterodyne (common); ZF/IF 128 kHz; 2 AF stage(s)
Tuned circuits 7 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Details
Power type and voltage Alternating Current supply (AC) / 110; 125; 145; 200; 220; 245 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21.5 cm = 8.5 inch
Power out
from Radiomuseum.org Model: S53A - Siera; Belgien
Material Wooden case
Shape Tablemodel with Push Buttons.
Dimensions (WHD) 535 x 355 x 230 mm / 21.1 x 14 x 9.1 inch
Notes
3 Band reception:
  • LW: 720 - 2000 m.
  • BC: 195 - 585 m.
  • SW: 16,7 - 51 m.
Tuning scale light bulbs type: 3 x 8045 (6,3V, 320mA). The booklet "Siera memento of tubes and models 1932-1946" mentions 3 light bulbs for this radio, where the schematic and Staleman mentions only 2.
 
Some other properties:
  • Loudspeaker Philips type 9602, having an extra cone to reduce the beaming effect at high frequencies. 
  • Connectors for second loudspeaker and for pick-up. 
  • Variable selectivity coupled to the tone control. 
  • Eight preselection buttons and manual tuning. 
  • AF feedback circuitry to reduce distortion.
This model is comparable with Philips 750A and Jura 53A .
 
This model can be upgraded to an AC/DC set (see type S53U) by incorporating a vibrator (Price: 250 BEF).
Net weight (2.2 lb = 1 kg) 15.6 kg / 34 lb 5.8 oz (34.361 lb)
Price in first year of sale 2'750.00 BEF
Source of data Technisch- Commercieel - Radio Vademecum Staleman
Mentioned in - - Manufacturers Literature (Siera memento of tubes and models 1932-1946)
Literature/Schematics (1) -- Original-techn. papers.

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



All listed radios etc. from Siera; Belgien
Here you find 434 models, 393 with images and 176 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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