• Year
  • 1955 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 309772

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 22.5 cm = 8.9 inch
  • from Radiomuseum.org
  • Model: Lautsprecher-Chassis - Walther, Ing. Erhard; ERWA;
  • Shape
  • Chassis only or for «building in»
  • Notes
  • Elektrodynamischer Lautsprecher der Fa. ERWA aus Plauen, 9" / 22,5 cm.

  • Author
  • Model page created by Gerhard Wickern. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum