• Year
  • 1929
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 69758

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Line / Batteries (any type)
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: NSF4 [ver 5] - NSF Nederlandsche
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • Dieses Modell benutzt Wechselspannung nur für Röhrenheizung.
  • External source of data
  • Radio Amateur Museum / Frans J.J. Driesens + ISBN 90-76014-04-3.
  • Source of data
  • -- Original-techn. papers.

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