• Country
• Czechoslovakia

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

• Year
• 1970 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 212715

• • Brand: Supraphon

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent or electro-dynamic (moving coil), system not known yet.

• Material
• Metal case

• from Radiomuseum.org
• Model: Loudspeaker ARZ 688 - Tesla; Praha, Bratislava etc.

• Shape
• Chassis only or for «building in»

• Notes
• 8 Ohm, 3 W, 95 - 15000 Hz.

• Net weight (2.2 lb = 1 kg)
• 0.280 kg / 0 lb 9.9 oz (0.617 lb)

• Source of data
• -- Original-techn. papers.

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

• Other Models

• Here you find 1836 models, 1155 with images and 665 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.