• Country
• Austria

• Manufacturer / Brand
• Stefra (Marke), Rudolf Franek; Wien

• Year
• 1958 ??

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 86626

• • Brand: Franek, Rudolf; Wien

• Main principle
• Crystal or Solid State Detector

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Dioden-Empfänger - Stefra Marke, Rudolf Franek;

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 62 x 21 x 79 mm / 2.4 x 0.8 x 3.1 inch

• Notes
• Spule mit verstellbarem Eisenkern, Diode OA70.

• Source of data
• -- Collector info (Sammler) / Radiokatalog Band 2, Ernst Erb

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 20 models, 19 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Stefra (Marke), Rudolf Franek; Wien