• Country
• Hungary

• Manufacturer / Brand
• Tungsram; Budapest (see also British T.)

• Year
• 1926 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 142059

• Number of Tubes
• 4

• Valves / Tubes

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Tetraformer - Tungsram; Budapest see also

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

• Literature/Schematics (1)
• Magyar Wolframlámpagyár Kremenezky János Rt. Rádiókatalógus ~1926

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

• Other Models

• Here you find 41 models, 40 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tungsram; Budapest (see also British T.)