• Country
• Netherlands

• Manufacturer / Brand
• NSF Nederlandsche Seintoestellen Fabriek, Hilversum

• Year
• 1938/1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 94947

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

• Number of Tubes
• 8

• Valves / Tubes
• EF8 EK3 EF9 EAB1 EM1 EF6 EL3 AZ1

• Main principle
• Superhet with RF-stage; ZF/IF 473 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 110-245 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 9 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: H25A - NSF Nederlandsche

• Shape
• Tablemodel with Push Buttons.

• Notes
• Motor tuning, 8 programmable push buttons. Chassis same as Philips 753A.

• Price in first year of sale
• 225.00 Hfl

• Source of data
• Technisch- Commercieel - Radio Vademecum Staleman

• Mentioned in
• -- Original prospect or advert

• Author
• Model page created by John Koster. See "Data change" for further contributors.

• 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