• Country
• Netherlands

• Manufacturer / Brand
• NSF Nederlandsche Seintoestellen Fabriek, Hilversum

• Year
• 1933/1934

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 94834

• Number of Tubes
• 5

• Valves / Tubes
• E462 E462 E444 C453 1823

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

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

• Power type and voltage
• Alternating Current supply (AC) / 125-245 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: WD4A - NSF Nederlandsche

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

• Dimensions (WHD)
• 425 x 485 x 315 mm / 16.7 x 19.1 x 12.4 inch

• Notes
• Superinductance. Cassis identically constructed like Philips 634A.

• Net weight (2.2 lb = 1 kg)
• 16.3 kg / 35 lb 14.4 oz (35.903 lb)

• Price in first year of sale
• 215.00 f

• Mentioned in
• Technisch- Commercieel - Radio Vademecum Staleman

• Author
• Model page created by Folkert Rothe. See "Data change" for further contributors.

• Other Models

• Here you find 160 models, 118 with images and 85 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from NSF Nederlandsche Seintoestellen Fabriek, Hilversum