• Country
• Japan

• Manufacturer / Brand
• Aiwa Co. Ltd.; Tokyo

• Year
• 1976

• Category
• Microphone or Pick-up element

• Radiomuseum.org ID
• 136677

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Various materials

• from Radiomuseum.org
• Model: Dynamisches Richtmikrofon DM 503 - Aiwa Co. Ltd.; Tokyo

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

• Notes
• 50-12 000 Hz. Impedance: 600 Ohm/50 kOhm ( mit Schalter).

• Source of data
• -- Original prospect or advert

• Author
• Model page created by Sándor Selyem-Tóth. See "Data change" for further contributors.

• Other Models

• Here you find 920 models, 871 with images and 159 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Aiwa Co. Ltd.; Tokyo