• Country
• Germany

• Manufacturer / Brand
• Beyer; Berlin, später Beyerdynamic; Heilbronn

• Year
• 1968 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 227754

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - Is a Headphone or Earphone

• Material
• Various materials

• from Radiomuseum.org
• Model: Kopfhörer DT-509 - Beyer; Berlin, später

• Notes

• Monokopfhörer in hellgrau, Impedanz 800 Ohm

• Author
• Model page created by Jan Zander. See "Data change" for further contributors.

• Other Models

• Here you find 149 models, 140 with images and 55 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Beyer; Berlin, später Beyerdynamic; Heilbronn