• Country
• Netherlands

• Manufacturer / Brand
• Philips; Eindhoven (tubes international!); Miniwatt

• Year
• 1961–1965 ??

• Category
• Medical Technology

• Radiomuseum.org ID
• 74029

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Hearing aid

• Power type and voltage
• Dry Batteries / 2 x 1.5 Volt

• Loudspeaker
• - only for Earphone!

• Material
• Metal case

• from Radiomuseum.org
• Model: Hearing aid 12M - Philips; Eindhoven tubes

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

• Dimensions (WHD)
• 59 x 90 x 20 mm / 2.3 x 3.5 x 0.8 inch

• Notes
• Hearing aid for pocket use.

• Net weight (2.2 lb = 1 kg)
• 0.3 kg / 0 lb 10.6 oz (0.661 lb)

• Author
• Model page created by a member from D. See "Data change" for further contributors.

• Other Models

• Here you find 5270 models, 4414 with images and 3455 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt