• Country
• Czechoslovakia

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

• Year
• 1958 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 151717

• • Brand: Supraphon

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 3

• Valves / Tubes
• ECH21 ECH21 AZ11 or ECH81 ECF82 EZ80

• Main principle
• none

• Power type and voltage
• Alternating Current supply (AC) / 120; 220 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Frekvenční modulátor - Frequency Modulator BM240 - Tesla; Praha, Bratislava etc.

• Dimensions (WHD)
• 190 x 255 x 230 mm / 7.5 x 10 x 9.1 inch

• Net weight (2.2 lb = 1 kg)
• 5.3 kg / 11 lb 10.8 oz (11.674 lb)

• Source of data
• -- = frühere Type mit ähnl. Charakteristik - darum Mod. teilw. früher.

• Author
• Model page created by Tobias Flück. See "Data change" for further contributors.

• Other Models

• Here you find 1838 models, 1159 with images and 668 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.