• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 98684

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

• Number of Tubes
• 6

• Valves / Tubes
• FC4 VP4A 2D4 SP4 PM24M DW2X

• Main principle
• Superheterodyne (common); ZF/IF 115 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• 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

• Material
• Wooden case

• from Radiomuseum.org
• Model: S36A [tubes FC4, VP4A, 2D4] - Siera; Belgien

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 350 x 410 x 240 mm / 13.8 x 16.1 x 9.4 inch

• Notes

• 2 Band reception:

  • LW: 750 - 2000 m.
  • BC: 200 - 570 m.
  Tuning scale light bulb type: 8046 (6V, 500mA).
  Loudspeaker Philips type 4283. Connectors for second loudspeaker and for pick-up. 
  Cabinet in varnished walnut.

  There is a Siera type S36A with Philips tubes.

• Net weight (2.2 lb = 1 kg)
• 11.7 kg / 25 lb 12.3 oz (25.771 lb)

• Price in first year of sale
• 1,950.00 BEF

• 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 465 models, 424 with images and 199 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siera; Belgien