• Country
• Czechoslovakia

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

• Year
• 1969/1970

• Category
• Pre-stage (adaptor for SW/FM/VHF/UHF incl. built-in), Frequency converter

• Radiomuseum.org ID
• 91210

• • Brand: Supraphon

• Number of Transistors
• 2

• Semiconductors
• GF507 GF507

• Main principle
• RF Converter/Adapter (not voltage converter)

• Wave bands
• VHF incl. FM and/or UHF (see notes for details)

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: UHF-Konverter 4952A - Tesla; Praha, Bratislava etc.

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 183 x 81 x 146 mm / 7.2 x 3.2 x 5.7 inch

• Notes
• UHF-Konverter. Umsetzung 470 - 880 MHz in Band I (OIRT) Kanal 1-4; Impedanz 300 Ohm; VHF-Signal wird durchgeschleift.
  Es gibt den Koverter in vier verschiedenen Ausführungen:
  4952A-a: Ausgang auf OIRT-Kanal 1,
  4952A-b: Ausgang auf OIRT-Kanal 2,
  4952A-c: Ausgang auf OIRT-Kanal 3,
  4952A-d: Ausgang auf OIRT- Kanal 4.

• Net weight (2.2 lb = 1 kg)
• 0.4 kg / 0 lb 14.1 oz (0.881 lb)

• Source of data
• Ceskoslovenske Rozhlasove a Televizni Prijimace a Zesilovace

• Author
• Model page created by Wolfgang Lill. See "Data change" for further contributors.

• Other Models

• Here you find 1857 models, 1183 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.