Phonophor Hörgerät (Hearing Aid) Delta

Siemens-Reiniger-Werke AG (SRW); Berlin

  • Year
  • 1955 ?
  • Category
  • Medical Technology
  • Radiomuseum.org ID
  • 344218

 Technical Specifications

  • Number of Tubes
  • 2
  • Number of Transistors
  • 1
  • Semiconductors
  • OC71
  • Main principle
  • Audio-Amplification; 3 AF stage(s)
  • Wave bands
  • - without
  • Details
  • Hearing aid
  • Power type and voltage
  • Dry Batteries / RM-1: 1,25 V & Pertrix 74: 15 Volt
  • Loudspeaker
  • - only for Earphone!
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Phonophor Hörgerät Delta - Siemens-Reiniger-Werke AG SRW;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 50 x 87 x 23 mm / 2 x 3.4 x 0.9 inch
  • Notes
  • Hörgerät für Hemd- bzw. Jackentasche, Metall-Gehäusehalbschalen  
    Hybridschaltung ähnlich oder identisch zu Accumed Berliner Hörbrille

  • Net weight (2.2 lb = 1 kg)
  • 0.1 kg / 0 lb 3.5 oz (0.22 lb)
  • Author
  • Model page created by Wolfgang Gebert. See "Data change" for further contributors.

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The model Phonophor Hörgerät (Hearing Aid) is part of the collections of the following members.

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