• Country
• Czechoslovakia

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

• Year
• 1970 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 208954

• • Brand: Supraphon

• Number of Tubes
• 4

• Valves / Tubes
• ZM1080 ZM1080 ZM1080 ZM1080

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110/220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 0.5 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Tone Generator NFG-21 - Tesla; Praha, Bratislava etc.

• Shape
• Rack

• Dimensions (WHD)
• 450 x 150 x 410 mm / 17.7 x 5.9 x 16.1 inch

• Notes
• Frequency range 0 - 200 kHz. 75 and 600 Ohm outputs.

• Source of data
• -- Original prospect or advert

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

• Other Models

• Here you find 1857 models, 1183 with images and 669 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.