• Country
• Hungary

• Manufacturer / Brand
• Telefongyar, Terta (TRT, Export = Orion); Budapest

• Year
• 1926/1927

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 244238

• • Brand: Terta, TRT

• Number of Tubes
• 3

• Valves / Tubes

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Loudspeaker
• - This model requires external speaker(s).

• Material
• TUBES VISIBLE, material not known.

• from Radiomuseum.org
• Model: Resistax / Dreiröhren Niederfrequenz Verstärker - Telefongyar, Terta TRT, Export

• Price in first year of sale
• 65.00 Pengő

• Mentioned in
• -- Original prospect or advert (BAPO 21/a, 1928. január)

• Literature/Schematics (2)
• Gunter Crämer, Chronik eines Radioherstellers, Nürberg 2007

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 219 models, 204 with images and 55 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Telefongyar, Terta (TRT, Export = Orion); Budapest