• Country
• Germany

• Manufacturer / Brand
• Stern-Radio Berlin, VEB, RFT, (Kombinat); - vorm. Phonetika Radio (Ostd.) - vorm. Loewe Opta AG

• Year
• 1977 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 115825

• • alternative name: Phonetika Radio Berlin, VEB; Berlin, (Ostd.)

• Number of Transistors
• 5

• Semiconductors

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

• Tuned circuits
• 5 AM circuit(s)     9 FM circuit(s)

• Wave bands
• Broadcast, Short Wave plus FM or UHF.

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

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

• Power out
• 0.5 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Tesla contura 2500 - Stern-Radio Berlin, VEB, RFT,

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

• Dimensions (WHD)
• 196 x 273 x 78 mm / 7.7 x 10.7 x 3.1 inch

• Notes
• 1 IC.
  Exportgerät, wurde in der Tschechoslowakei unter TESLA vertrieben. OIRT-UKW-Band 66...73 MHz, Kurzwelle nur 49 m-Band. NF- Schaltkreis A211, Lautsprecher LP553 mit Z = 15 Ohm, 2 Watt, 2x SF235, 3x SF225. Wahlweise 6x R14 Zellen oder 2x Flachbatterie 4,5 Volt.

• Net weight (2.2 lb = 1 kg)
• 1.7 kg / 3 lb 11.9 oz (3.744 lb)

• Source of data
• - - Data from my own collection

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

• Other Models

• Here you find 233 models, 215 with images and 174 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stern-Radio Berlin, VEB, RFT, (Kombinat); - vorm. Phonetika Radio (Ostd.) - vorm. Loewe Opta AG