• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1932/1933

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 138810

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

• Number of Tubes
• 5

• Valves / Tubes
• S4VB S4VB 244VX PM24A DW2X

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

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

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) of high quality (4 magnet poles). / Ø 28 cm = 11 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Super Inductance 5 - Siera; Belgien

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

• Dimensions (WHD)
• 435 x 570 x 240 mm / 17.1 x 22.4 x 9.4 inch

• Notes
• Principle: Super Inductance. 2 Band reception:
  • LW: 850 - 2000 m.
  • BC: 200 - 600 m.
  Tuning scale light bulb type: 8046 (6V, 500mA).

  Loudspeaker Philips type 2300. Connector for second high impedance loudspeaker and for pick-up.

  This radio has a typeplate mentioning type "5". The leading "S" was often omitted on such typeplates from Siera. It is safe to deduct that type 5 and S5 are the same, also since their technical properties are identical.

• Source of data
• Manuel de la Radio 1940, van Cortenberghe

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

• Author
• Model page created by Stefan Weigelt. See "Data change" for further contributors.

• Other Models

• Here you find 474 models, 434 with images and 212 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Siera; Belgien