• Country
• Hungary

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

• Year
• 1926

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 298299

• • Brand: Terta, TRT

• Number of Tubes
• 2

• Valves / Tubes

• Main principle
• Radio Frequency Amplification only

• Wave bands
• Wave Bands given in the notes.

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case, TUBES VISIBLE.

• from Radiomuseum.org
• Model: Vitax Biformer - Telefongyar, Terta TRT, Export

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Price in first year of sale
• 60.00 Pengő

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

• Literature/Schematics (1)
• -- Original prospect or advert (Rádió Amatőr 1926. 1/2.)

• Author
• Model page created by Sándor Perneky. See "Data change" for further contributors.

• Other Models

• Here you find 218 models, 203 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