• Country
• Netherlands

• Manufacturer / Brand
• NSF Nederlandsche Seintoestellen Fabriek, Hilversum

• Year
• 1923

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 69724

• Number of Tubes
• 1

• Valves / Tubes

• from Radiomuseum.org
• Model: O20 - NSF Nederlandsche

• Notes
• Information taken from Radio Nieuws 23/04. Picture Nr.: 004.10

• Price in first year of sale
• 55.00 Hfl

• 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
• Radio-Nieuws, Netherlands (RN, 78)

• 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