• Year
  • 1928–1932
  • Category
  • Radio module post 1925 (not a part, not a key)
  • Radiomuseum.org ID
  • 4526

 Technical Specifications

  • Main principle
  • RF-Circuit or wave trap (separate, can also be an antenna with amp.)
  • Tuned circuits
  • 1 AM circuit(s)
  • Power type and voltage
  • No Power needed
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: Sperrkreis - Telefunken Deutschland TFK,
  • Notes
  • Sperrkreis, stehender Topf, oben Knopf für Drehko [514,560,569]
  • Price in first year of sale
  • 16.00 RM

 Collections | Museums | Literature

Collections

The model Sperrkreis is part of the collections of the following members.

 Forum