• Country
• Netherlands

• Manufacturer / Brand
• NSF Nederlandsche Seintoestellen Fabriek, Hilversum

• Year
• 1940/1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 94979

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

• Number of Tubes
• 4

• Valves / Tubes
• ECH3 EF9 EBL1 AZ1

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz; 1 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 145; 200; 220; 245 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 17 cm = 6.7 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: H146A - NSF Nederlandsche

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 570 x 300 x 250 mm / 22.4 x 11.8 x 9.8 inch

• Notes
• 3 Band reception:
  • LW: 708 - 2000 m.
  • BC: 175 - 585 m.
  • SW: 13,8 - 51 m.
  Tuning scale light bulbs type: 8091D (6,3V, 640mA). The unit has an economic swith to reduce power consumption.
  Loudspeaker Philips type 9646. Connectors for second loudspeaker and for pick-up. 
   
  There are 9 push-buttons:
  • 3 for a preselected station on BC or LW
  • 3 for a preselected station on BC only
  • 1 for manual tuning on each band. 

  This model is the follow-up of model NSF H94A, which has almost the same schematic and look, but no economic switch.

• Price in first year of sale
• 142.00 Hfl

• Mentioned in
• Technisch- Commercieel - Radio Vademecum Staleman

• Literature/Schematics (1)
• -- Original-techn. papers. (Generic model 146A by Philips)

• Author
• Model page created by John Koster. 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