• Year
  • 1935 ??
  • Category
  • Loudspeaker, headphone or earphone
  • Radiomuseum.org ID
  • 241933
    • Brand: JBL

 Technical Specifications

  • Wave bands
  • - without
  • Power type and voltage
  • Powered by external power supply or a main unit. / DC 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 2.84 inch = 7.2 cm
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Horn Driver 284 - Lansing, James B. JBL, Los
  • Dimensions (WHD)
  • 6.5 x 5.375 x 6.5 inch / 165 x 137 x 165 mm
  • Notes
  • High-frequency compression driver for the Shearer Horn movie sound speaker.
    Voice coil: Impedance 22 Ω, DCR approx. 13 Ω
    Field coil: approx. 650 Ω

  • Net weight (2.2 lb = 1 kg)
  • 24.8 lb (24 lb 12.8 oz) / 11.259 kg

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