• Country
• Austria

• Manufacturer / Brand
• Zerdik; Wien

• Year
• 1932/1933

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 11010

• Number of Tubes
• 3

• Valves / Tubes

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: NF-Verstärker JW22 - Zerdik; Wien

• Notes
• 2-Watt-Universal-Loftin-White-Verstärker

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Funktechnischer Vorwärts (3203)

• Other Models

• Here you find 166 models, 115 with images and 76 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zerdik; Wien