• Country
• Czechoslovakia

• Manufacturer / Brand
• Tesla; Praha, Bratislava etc.

• Year
• 1958 ?

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 358472

• • Brand: Supraphon

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16.2 cm = 6.4 inch

• Power out
• 1.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Loudspeaker ARO 431 - Tesla; Praha, Bratislava etc.

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 162 x 162 x 77.5 mm / 6.4 x 6.4 x 3.1 inch

• Notes

• 70 - 10000 Hz, 5 Ohm.

• Net weight (2.2 lb = 1 kg)
• 0.6 kg / 1 lb 5.1 oz (1.322 lb)

• Author
• Model page created by Gabriel Toth. See "Data change" for further contributors.

• Other Models

• Here you find 1874 models, 1199 with images and 682 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.