• Country
• Germany

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

• Year
• 1931 ?

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 159805

• Main principle
• RF-Circuit or wave trap (separate, can also be an antenna with amp.)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Sperrkreis Rfz15 - Telefunken Deutschland TFK,

• Dimensions (WHD)
• 158 x 110 x 0 mm / 6.2 x 4.3 x 0 inch

• Notes
• Unterdrückt störende Wellen und ermöglicht auch in der Nähe starker Sender störungsfreien Fernempfang. Wellenbereich 200...640 m.

• Net weight (2.2 lb = 1 kg)
• 0.470 kg / 1 lb 0.6 oz (1.035 lb)

• Price in first year of sale
• 40.00 ATS

• Author
• Model page created by Peter Gölles. See "Data change" for further contributors.

• Other Models

• Here you find 3571 models, 3157 with images and 2114 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