• Country
• Germany

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

• Year
• 1931–1934

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

• Radiomuseum.org ID
• 4460

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

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

• Tuned circuits
• 1 AM circuit(s)

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

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Universal-Sperrkreis SP3 - Telefunken Deutschland TFK,

• Shape
• Tablemodel, with any shape - general.

• Notes
• «Universal» flach, für MW und LW [501]

• Price in first year of sale
• 14.00 RM

• Source of data
• Katalog Radio-Zentrale Prohaska 1932/33 / Radiokatalog Band 1, Ernst Erb

• Mentioned in
• Radio-Zentrale Prohaska 1933/34

• Literature/Schematics (1)
• - - Manufacturers Literature (Telefunken Sprecher Nr. 38, Januar 1932)

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 3545 models, 3125 with images and 2094 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