• Country
• Hungary

• Manufacturer / Brand
• Barta es Tarsa (BAPO); Budapest

• Year
• 1936–1939

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 299175

• Main principle
• Crystal or Solid State Detector

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Roys kétkristályos detektor - Roys Dual Crystal Detector - Barta es Tarsa BAPO; Budapest

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Price in first year of sale
• 1.26 Pengő

• Mentioned in
• -- Original prospect or advert (Barta és Társa Árjegyzék, BP. 1939.)

• Literature/Schematics (1)
• -- Original prospect or advert (Barta és Társa Árjegyzék - BAPO 51, BP. 1936.)

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

• Other Models

• Here you find 123 models, 103 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Barta es Tarsa (BAPO); Budapest