• Country
• Switzerland

• Manufacturer / Brand
• Niesen, Constructions électriques et mécaniques (CEM); Neuchâtel

• Year
• 1935/1936

• Category
• Wired Receiver (AF only)

• Radiomuseum.org ID
• 12592

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

• Number of Tubes
• 3

• Valves / Tubes
• 37 42 80

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

• Details
• Wired Wireless Receiver(AF only)

• Power type and voltage
• Alternating Current supply (AC) / 110; 125; 150; 220 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• from Radiomuseum.org
• Model: NF-Telefonrundspruch 35B - Niesen, Constructions

• Notes
• Rö: Tu = 27 statt 37!; NF-TR

• External source of data
• E. Erb 3-907007-36-0

• Source of data
• Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Thali-Schemasammlung und Tungsram-Röhrenbestückung.

• Other Models

• Here you find 81 models, 51 with images and 56 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Niesen, Constructions électriques et mécaniques (CEM); Neuchâtel