• Country
• Czechoslovakia

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

• Year
• 1967–1970

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 91015

• • Brand: Supraphon

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

• Number of Transistors
• 6

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Rec.Player+Audio.Amp+LS

• Power type and voltage
• Dry Batteries / 6 × 1,5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 cm = 4.7 inch

• Power out
• 0.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: GBZ641 - Tesla; Praha, Bratislava etc.

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

• Notes
• Stereo-Kofferplattenspieler; 78/45/33/16 UpM; Laufwerk: HB641, piezoelektrisches Abtastsystem VK641MN II; Monoverstärker eingebaut, Lautsprecher ARZ361, elektronische Motorregelung, Funktion gewährleistet zwischen 9 und 6,3 Volt; Gerät hat serienmäßig keinen Ausgang für Stereowidergabe.

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

• Author
• Model page created by Wolfgang Lill. 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.