Negadyn

KNN, Praha

  • Year
  • 1927 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 167791

 Technical Specifications

  • Number of Tubes
  • 1
  • Valves / Tubes
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - only for Earphone!
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Negadyn - KNN, Praha
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Notes
  • Negadyne is a certain high sensitive demodulating circuit using a space charge tetrode, where positive feedback acts through interaction between the grids, hence no reaction coil is necessary. Alternatively a second mode can be selected: Crystal detection with audio amplification.
  • Author
  • Model page created by Gabriel Toth. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum