• Country
• Czechoslovakia

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

• Year
• 1957–1959

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 71177

• • Brand: Supraphon

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

• Number of Tubes
• 7

• Valves / Tubes
• ECH81 6F31 6B32 6CC41 EM80 6L31 AZ11

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

• Tuned circuits
• 6 AM circuit(s)

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

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

• Loudspeaker
• 3 Loudspeakers / Ø 10 cm = 3.9 inch

• Power out
• 2.4 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Choral 624A - Tesla; Praha, Bratislava etc.

• Shape
• Tablemodel, with any shape - general.

• Notes
• 1x oval LS 20x15cm, 2x circular D10 cm

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

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

• Other Models

• Here you find 1835 models, 1152 with images and 661 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.