• Country
• Germany

• Manufacturer / Brand
• Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH

• Year
• 1919 ??

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 157103

• Main principle
• Crystal or Solid State Detector; none

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Kristalldetektor ED149a - Telefunken Deutschland TFK,

• Shape
• Miscellaneous shapes - described under notes.

• Dimensions (WHD)
• 42 x 51 x 20 mm / 1.7 x 2 x 0.8 inch

• Notes
• Einfacher Kontaktdetektor, flache Form. Stiftabstand 20 mm.

• Net weight (2.2 lb = 1 kg)
• 0.050 kg / 0 lb 1.8 oz (0.11 lb)

• Author
• Model page created by Nikolaus Löwe. See "Data change" for further contributors.

• Other Models

• Here you find 3573 models, 3159 with images and 2117 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH