• Country
• Germany

• Manufacturer / Brand
• Isaria Zählerwerke AG; München

• Year
• 1925–1927

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 15119

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• Audio-Amplification

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

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case, TUBES VISIBLE

• from Radiomuseum.org
• Model: V2 - Isaria Zählerwerke AG; München

• Shape
• Tablemodel, slant panel.

• Notes
• NF-Verstärker für A, R, RL, R3L und HR4L.

• Price in first year of sale
• 100.00 RM

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

• Source of data
• Döring-Film-Werke 1927 / Radiokatalog Band 2, Ernst Erb

• Other Models

• Here you find 37 models, 28 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Isaria Zählerwerke AG; München