• Country
• Austria

• Manufacturer / Brand
• Tesig; Wien

• Year
• 1926

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 10939

• Number of Tubes
• 1

• Valves / Tubes

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: NF-Verstärker 1 Rö - Tesig; Wien

• Notes
• zu Autodyne-Empf.

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Radiowelt, Wien (RW, 51) (2627B)

• Other Models

• Here you find 29 models, 14 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesig; Wien