• Country
• Germany

• Manufacturer / Brand
• Schneider-Opel AG, Radiowerke; Frankfurt a.M., später Berlin

• Year
• 1924/1925

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 16894

• • Brand: Mars

• Number of Tubes
• 2

• Valves / Tubes
• RE79 RE89 or RE79

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: SO2N - Schneider-Opel AG, Radiowerke;

• Shape
• Tablemodel, slant panel.

• Notes
• NF-Verst.zu 2A;NF-Trafos;Gittervorsp.mögl. [9-41B]

• Price in first year of sale
• 65.00 RM +

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Info Dr. H. Börner without schematic

• Mentioned in
• Funkgeschichte der GFGF (9287")

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 127 models, 79 with images and 20 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Schneider-Opel AG, Radiowerke; Frankfurt a.M., später Berlin