• Country
• Austria

• Manufacturer / Brand
• ÖTAG; Österreichische Telefonfabriks-AG, vorm. J. Berliner; Wien

• Year
• 1925

• Category
• RF (Radio Frequency-) Amplifier

• Radiomuseum.org ID
• 10010

• • alternative name: Österreichische Telephonfabriks-AG
  • Brand: Berliner

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• TRF with regeneration; 2 Special

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 100+4 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: 75400 - ÖTAG; Österreichische

• Notes
• 3fach HF-Verstärker zu 75500

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 99 models, 62 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from ÖTAG; Österreichische Telefonfabriks-AG, vorm. J. Berliner; Wien