• Year
  • 1940 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 100960

 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 13.5 inch = 34.3 cm
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Auditorium Speaker M-20 - Jensen Radio Manufacturing Co.
  • Shape
  • Chassis only or for «building in»
  • Source of data
  • -- Collector info (Sammler)

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