• Year
  • 1964
  • Category
  • Kit (Parts plus instruction) or building instructions only
  • Radiomuseum.org ID
  • 131545

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

 Technical Specifications

  • Number of Transistors
  • 3
  • Semiconductors
  • Main principle
  • Crystal or Solid State Detector with Amplifer; 3 AF stage(s)
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries
  • Loudspeaker
  • - only for Earphone!
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Ohrradio OR31 - ARLT Radio Elektronik Walter
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Notes
  • Eine Diode; winziges Gehäuse, direkt am Ohr zu tragen; Gewicht incl. Batterie: 30 g. Abstimmung induktiv über Ferrit-Gewindestab. Hörer: Magnetsystem. Bausatzpreis DM 29,50, Baumappe hierzu DM 1,50.
  • Price in first year of sale
  • 30.00 DM
  • Mentioned in
  • Arlt-Katalog 1964, S.503 f.

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