• Country
• Netherlands

• Manufacturer / Brand
• NSF Nederlandsche Seintoestellen Fabriek, Hilversum

• Year
• 1922

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69717

• Number of Tubes
• 1

• Valves / Tubes
• V24

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

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

• Power type and voltage
• Storage and/or dry batteries / 6 &100 Volt

• Loudspeaker
• - For headphones or amp.

• from Radiomuseum.org
• Model: O29 - NSF Nederlandsche

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Notes
• Information taken from Maker information. Picture Nr.: 004.05. This is the same model as Erres IV.

• External source of data
• Radio Amateur Museum / Frans J.J. Driesens + ISBN 90-76014-04-3.

• Source of data
• Opkomst van de Nederlandse Radio-Industrie

• Mentioned in
• -- Original prospect or advert

• Other Models

• Here you find 165 models, 120 with images and 94 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from NSF Nederlandsche Seintoestellen Fabriek, Hilversum