• Country
• Hungary

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

• Year
• 1930

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 219364

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Various materials

• from Radiomuseum.org
• Model: Headphones Roys [4000 ohms] - Barta es Tarsa BAPO; Budapest

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

• Dimensions (WHD)
• 60 x 60 x 28 mm / 2.4 x 2.4 x 1.1 inch

• Notes

• Impedance: 4000 Ohm.

  Mahagóni vörös trolit / mahogany red color, material trolley.

• Net weight (2.2 lb = 1 kg)
• 0.060 kg / 0 lb 2.1 oz (0.132 lb)

• Price in first year of sale
• 8.75 Pengő

• Literature/Schematics (4)
• Bapo Árjegyzék, Budapest 1930. december.

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