Popular 521A

• Country
• Czechoslovakia

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

• Year
• 1956/1957

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 73192

• • Brand: Supraphon

• Picture
• Schematics

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

• Number of Tubes
• 6

• Valves / Tubes
• 6H31 6F31 6BC32 6L31 EM11 6Z31

• 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) / 110-240 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 16 cm = 6.3 inch

• Power out
• 2.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Popular 521A - Tesla; Praha, Bratislava etc.

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

• Dimensions (WHD)
• 490 x 335 x 200 mm / 19.3 x 13.2 x 7.9 inch

• Notes

• Some models have an elliptical loudspeaker (20 x 15 cm). Chassis also used in Tesla Dirigent 1001A.

  See also models 521A-2, 521A-5 (both with different dial scales) and 521A-7 (no station names) for export versions; as well as models 521A-15 and 521A-17 (no station names) for the export versions with 3x SW and no LW.

• 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 1844 models, 1165 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.