• Country
• Hungary

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

• Year
• 1952–1955

• Category
• Commercial Transmitter & Receiver (TRX not Amateur)

• Radiomuseum.org ID
• 269235

• • Brand: Terta, TRT

• Number of Tubes
• 0

• Valves / Tubes
• OS51

• Main principle
• Transmitter

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries)

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Transmitter R-40 - Telefongyar, Terta TRT, Export

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Notes

• 2,5-20 MHz.

• Author
• Model page created by Sándor Selyem-Tóth. 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