• Country
• Czechoslovakia

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

• Year
• 1967/1968

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 75783

• • Brand: Supraphon

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

• Number of Transistors
• 9

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455/10700 kHz

• Tuned circuits
• 5 AM circuit(s)     8 FM circuit(s)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Dry Batteries / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 0.2 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Twist 2817B - Tesla; Praha, Bratislava etc.

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 220 x 170 x 62 mm / 8.7 x 6.7 x 2.4 inch

• Net weight (2.2 lb = 1 kg)
• 1.5 kg / 3 lb 4.9 oz (3.304 lb)

• Source of data
• -- Schematic

• Mentioned in
• Ceskoslovenske Rozhlasove a Televizni Prijimace a Zesilovace

• Author
• Model page created by Iven Müller. See "Data change" for further contributors.

• Other Models

• Here you find 1874 models, 1199 with images and 681 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tesla; Praha, Bratislava etc.