• Country
• Austria

• Manufacturer / Brand
• Sommer AG, Otto; Wien

• Year
• 1924/1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 10716

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• TRF with regeneration; 1 Special; 1 AF stage(s)

• Tuned circuits
• 2 AM circuit(s)

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

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: 3-Röhren-Empfänger - Sommer AG, Otto; Wien

• Notes
• Nachfolger HAN [Der Radioempf.App.1924]

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Radiowelt, Wien (RW, 51) (2427)

• Other Models

• Here you find 26 models, 7 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sommer AG, Otto; Wien