Symphonette Hörgerät (Hearing Aid) Mono-Pac Model "S"

Beltone Hearing Aid Company; Chicago (IL)

  • Year
  • 1948
  • Category
  • Medical Technology
  • Radiomuseum.org ID
  • 216438

 Technical Specifications

  • Number of Tubes
  • 3
  • Valves / Tubes
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hearing aid
  • Power type and voltage
  • Dry Batteries / 1,4 & 22.5 Volt
  • Loudspeaker
  • - only for Earphone!
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Symphonette Hörgerät Mono-Pac Model "S" - Beltone Hearing Aid Company;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 2.25 x 3.625 x 0.875 inch / 57 x 92 x 22 mm
  • Notes
  • Beltone Hearing Aid Model Symphonette Mono-Pac Model "S".
    Required batteries:
    1.4 V Mercury RM-3 as "A" battery, 22.5 V No. 412E "B" battery.
  • Net weight (2.2 lb = 1 kg)
  • 0 lb 6 oz (0.375 lb) / 0.170 kg
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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