• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1946

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 99039

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• UCH21 UCH21 UBL21 UY1N

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

• Tuned circuits
• 6 AM circuit(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 17 cm = 6.7 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: S130U - Siera; Belgien

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

• Dimensions (WHD)
• 395 x 270 x 195 mm / 15.6 x 10.6 x 7.7 inch

• Notes
• 3 Band reception:
  • LW: 715 - 2000 m.
  • BC: 200 - 585 m.
  • SW: 16 - 51 m.
  Tuning scale light bulbs type: 2 x 8095D (19V, 90mA).
  Loudspeaker Philips type 9678. Connector for external loudspeaker.
   
  This model is comparable with Mediator M207U, NSF H207U and Philips 656U.
   
  The booklet "Siera memento of tubes and models 1932-1946" defines the I.F. at 452 kHz as apposed to the technical manual that defines it at 468 kHz. It is possible that Siera Leuven used the I.F. transformers from S130U-01.
   
  ATTENTION: chassis connected to the mains.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Mentioned in
• - - Manufacturers Literature (Siera memento of tubes and models 1932-1946)

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by John Koster. 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