• Country
• Czechoslovakia

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

• Year
• 1947/1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 30896

• • Brand: Supraphon

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

• Number of Tubes
• 6

• Valves / Tubes
• ECH21 EF22 EF22 EBL21 EM11 AZ11

• Main principle
• Superheterodyne (common); ZF/IF 468 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 18 cm = 7.1 inch

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Klasik - Tesla; Praha, Bratislava etc.

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 530 x 390 x 265 mm / 20.9 x 15.4 x 10.4 inch

• Notes
• Wellenbereiche: LW 700...2000 m; MW 195...600 m; KW1 13,5...20 m; KW2 24,5...52 m.

• Net weight (2.2 lb = 1 kg)
• 13.8 kg / 30 lb 6.3 oz (30.396 lb)

• Source of data
• -- Collector info (Sammler)

• Mentioned in
• Ceskoslovenske Rozhlasove a Televizni Prijimace I a II

• Other Models

• Here you find 1872 models, 1196 with images and 678 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.