• Country
• Germany

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

• Year
• 1937 ?

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

• Radiomuseum.org ID
• 188755

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

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Sperrkreis LSP-33m - Telefunken Deutschland TFK,

• Notes
• Der Telefunken-Sperrkreis LSP-33m hat den Frequenzbereich von 520 bis 1300 kHz.

• Mentioned in
• Telefunkensprecher 4/37 Seite 129

• Author
• Model page created by Egon Strampe. See "Data change" for further contributors.

• 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