• Country
• Belgium

• Manufacturer / Brand
• Siera; Belgien

• Year
• 1961 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 217698

• Number of Tubes
• 3

• Valves / Tubes

• Number of Transistors
• 3

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: SA6057BT - Siera; Belgien

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 360 x 240 x 128 mm / 14.2 x 9.4 x 5 inch

• Notes
• Siera SA 6057BT;
  One Germanium Diode, ferrite aerial.

• Source of data
• -- Original prospect or advert

• Author
• Model page created by João-Afonso Santos. 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