• Country
• Germany

• Manufacturer / Brand
• Radio-Amato, Otto Lootze; Berlin

• Year
• 1926–1928

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 16200

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 2

• Valves / Tubes
• RE154 RE152

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Zweiröhren-Widerstands-Verstärker 4047 - Radio-Amato, Otto Lootze;

• Dimensions (WHD)
• 210 x 70 x 185 mm / 8.3 x 2.8 x 7.3 inch

• Notes
• NF-Verstärker; Widerstandskopplung

• Price in first year of sale
• 33.00 RM

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

• Source of data
• Katalog Radio-Zentrale Prohaska 1928 / Radiokatalog Band 2, Ernst Erb

• Mentioned in
• Historische Radios Band III (214)

• Picture reference
• Das Gerät ist im Doppelband "Historische Radios" von Günther Abele abgebildet.

• Other Models

• Here you find 88 models, 76 with images and 27 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio-Amato, Otto Lootze; Berlin