• Country
• Germany

• Manufacturer / Brand
• Seibt, Dr. Georg (Nachf.); Berlin, auch München

• Year
• 1924/1925

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 5881

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• Audio-Amplification

• Power type and voltage
• Storage and/or dry batteries / 90+6 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: 2-Röhren-NF-Verstärker 1 Heizregler - Seibt, Dr. Georg Nachf.;

• Notes
• nur 1 gemeinsamer Heizregler für beide Röhren.

• Source of data
• Radiokatalog Band 1, Ernst Erb

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

• Other Models

• Here you find 414 models, 353 with images and 203 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Seibt, Dr. Georg (Nachf.); Berlin, auch München