• Country
• Germany

• Manufacturer / Brand
• Radiosonanz (GmbH bzw. AG), Berlin (W15)-Charlottenburg

• Year
• 1927

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 16366

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• Audio-Amplification

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: NF-Verstärker 2 Rö - Radiosonanz GmbH bzw. AG,

• Notes
• Flachpult; 2 Heizregler.

• Price in first year of sale
• 48.00 RM

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

• Source of data
• Radio-Bauer, Kat. Nr. 6, April 1927 / Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 41 models, 22 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radiosonanz (GmbH bzw. AG), Berlin (W15)-Charlottenburg