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S45A (Siera Super 45) tubes AK1, AF2, AB1, AL2

S45A ; Siera; Belgien (ID = 1915851) Radio
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S45A ; Siera; Belgien (ID = 1915851) Radio
Siera; Belgien: S45A [Radio] ID = 1915851 463x881
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For model S45A (Siera Super 45) tubes AK1, AF2, AB1, AL2, Siera; Belgien:
private collection
Country:  Belgium
Manufacturer / Brand:  Siera; Belgien
Year: 1935 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 7: AK1 AF2 484VX AB1 SP4 AL2 DW2X
Main principle Superheterodyne (common); ZF/IF 115 kHz
Wave bands Broadcast (MW) and Long Wave.
Details Visual Tuning Indicator pre Eye
Power type and voltage Alternating Current supply (AC) / 105-115; 120-130; 140-160; 210-230; 240-260 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 21 cm = 8.3 inch
Power out
from Model: S45A [tubes AK1, AF2, AB1, AL2] - Siera; Belgien
Material Wooden case
Shape Tablemodel, high profile (upright - NOT Cathedral nor decorative).
Dimensions (WHD) 415 x 490 x 220 mm / 16.3 x 19.3 x 8.7 inch
The radio has a visual tuning aid using triode 484VX and a milliampere meter.
2 Band reception:
  • LW: 800 - 1900 m.
  • BC: 200 - 550 m.
Tuning scale light bulbs type: 3 x 8059 (6V, 100mA).
Loudspeaker Philips type 4283. Connector for second loudspeaker.
See also the similar Tenor T45A.
There is also a version S45A with Mullard tubes.

This variant of type S45A (with the AL2 tube) could only appear from 1935 on. If we want to show it 1934, we have to change to AL1. Would then be the original tube line-up.

Net weight (2.2 lb = 1 kg) 12 kg / 26 lb 6.9 oz (26.432 lb)
Price in first year of sale 2'850.00 BEF
Source of data -- Original prospect or advert
Mentioned in - - Manufacturers Literature (Siera memento of tubes and models 1932-1946)

Model page created by Dirk Bladt. 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.