• Country
• Germany

• Manufacturer / Brand
• Stern-Radio Leipzig, VEB, - vorm. Opta-Radio AG (Ostd.)

• Year
• 1947/1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 16550

• Number of Tubes
• 4

• Valves / Tubes
• ECH11 EBF11 ECL11 AZ11

• Main principle
• Superheterodyne (common)

• Tuned circuits
• 6 AM circuit(s)

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Opta 3127C - Stern-Radio Leipzig, VEB, -

• Notes
• vom ehem. Opta-Werk in Leipzig

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Die Geschichte der Rundfunkindustrie der DDR Band 1 1945 - 1967

• Other Models

• Here you find 23 models, 14 with images and 12 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stern-Radio Leipzig, VEB, - vorm. Opta-Radio AG (Ostd.)