• Country
• Czechoslovakia

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

• Year
• 1967–1970

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 90528

• • Brand: Supraphon

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

• Number of Transistors
• 13

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Tape Recorder

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

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

• Power out
• 4 W (undistorted)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: B46 ANP253 - Tesla; Praha, Bratislava etc.

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 315 x 120 x 300 mm / 12.4 x 4.7 x 11.8 inch

• Notes

• 4-Spur-Stereotonbandgerät, Laufwerk B4; 9,53 cm/s. Transistoren: 8× 106NU70, 105NU70, 104NU70, OC72, 2× OC30; Übertragungsbereich: 50...14000 Hz.  Stereo-Hören ist nur mit Kopfhörern möglich oder es muss ein Stereo-Leistungsverstärker verwendet werden.

  In some Tesla literature this model was mentioned on the beginning like ANP270, but no-one unit in production was signed with ANP270, but ANP253 only! The correct ANP270 models are the B100 series ones.

• Net weight (2.2 lb = 1 kg)
• 7 kg / 15 lb 6.7 oz (15.419 lb)

• Source of data
• -- Collector info (Sammler)

• Literature/Schematics (4)
• Rádiótechnika évkönyv, 1972.

• 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.