The Ambassador Hearing Aid

Zenith Radio Corp.; Chicago, IL

  • Year
  • 1958
  • Category
  • Medical Technology
  • Radiomuseum.org ID
  • 73955
    • alternative name: Chicago Radio Lab

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hearing aid
  • Power type and voltage
  • Dry Batteries
  • Loudspeaker
  • - only for Earphone!
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: The Ambassador Hearing Aid - Zenith Radio Corp.; Chicago,
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Notes
  • at-the-ear unit;

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