• Country
• Czechoslovakia

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

• Year
• 1952 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 217740

• • Brand: Supraphon

• Number of Tubes
• 5

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

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• 110/220 Volt

• Loudspeaker
• Ø 16 cm = 6.3 inch

• Power out
• 3 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Supraphon 420A-7 - Tesla; Praha, Bratislava etc.

• Dimensions (WHD)
• 320 x 225 x 190 mm / 12.6 x 8.9 x 7.5 inch

• Author
• Model page created by Robert Forchert-Mühlbachler. See "Data change" for further contributors.

• Other Models

• Here you find 1832 models, 1138 with images and 643 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.