• Country
• Austria

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

• Year
• 1936/1937

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

• Radiomuseum.org ID
• 280635

• • Brand: Franek, Rudolf; Wien

• Main principle
• Crystal or Solid State Detector

• Wave bands
• Broadcast only (MW).

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Detektor-Empfänger Modell 37 - Stefra Marke, Rudolf Franek;

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

• Dimensions (WHD)
• 95 x 50 x 45 mm / 3.7 x 2 x 1.8 inch

• Net weight (2.2 lb = 1 kg)
• 0.125 kg / 0 lb 4.4 oz (0.275 lb)

• Price in first year of sale
• 12.00 ÖS

• Mentioned in
• RADIOBOTE, Österr. (Heft 49/2014, S.8 ff, Gerätebeschreibung)

• Author
• Model page created by Erwin Macho. 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