• Country
• Germany

• Manufacturer / Brand
• Transitton-Elektronik, Heinz Will; Hamburg

• Year
• 1958

• Category
• Medical Technology

• Radiomuseum.org ID
• 350057

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 4

• Semiconductors
• OC75 OC71 OC71 OC71

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Hearing aid

• Power type and voltage
• Dry Batteries / AA: 1,5 Volt

• Loudspeaker
• - only for Earphone!

• Material
• Metal case

• from Radiomuseum.org
• Model: Hörgerät T4-1.5 - Transitton-Elektronik, Heinz

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Dimensions (WHD)
• 56 x 60 x 18 mm / 2.2 x 2.4 x 0.7 inch

• Notes

• Kleines Hörgerät für Hemd- oder Jackentasche mit Telefonhörspule.

• Net weight (2.2 lb = 1 kg)
• 0.060 kg / 0 lb 2.1 oz (0.132 lb)

• Author
• Model page created by Wolfgang Gebert. See "Data change" for further contributors.

• Other Models

• Here you find 2 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Transitton-Elektronik, Heinz Will; Hamburg