• Country
• Germany

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

• Year
• 1923–1925

• Category
• Detector-Radio (Crystal or diode, without tubes/transistors)

• Radiomuseum.org ID
• 4619

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

• Main principle
• Crystal or Solid State Detector; Crystal-detection 1 circuit (no tubes)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Telefunkon A [Kasten] - Telefunken Deutschland TFK,

• Dimensions (WHD)
• 130 x 165 x 152 mm / 5.1 x 6.5 x 6 inch

• Notes
• Variometer-Abstimmung 270-1200 m; ist Siemens 5A.

• Net weight (2.2 lb = 1 kg)
• 0.7 kg / 1 lb 8.7 oz (1.542 lb)

• Price in first year of sale
• (21.00 ?)  (RM ?)  

• Source of data
• Radiokatalog Band 1, Ernst Erb

• Mentioned in
• (-- Original prospect or advert ?) (Telefunken Preisliste Nr. 9 ?)

• Picture reference
• Eine Abbildung findet sich im Doppelband "Radios von gestern"

• Other Models

• Here you find 3559 models, 3144 with images and 2111 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