NF-Telefonrundspruch 50-1933

Biennophone; (Marke)

  • Year
  • 1933/1934
  • Category
  • Wired Receiver (AF only)
  • Radiomuseum.org ID
  • 11455
    • alternative name: Sport AG Biel || Velectra AG

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Wired Wireless Receiver(AF only)
  • Power type and voltage
  • Alternating Current supply (AC) / 110; 130; 150; 220 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 22 cm = 8.7 inch
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: NF-Telefonrundspruch 50-1933 - Biennophone; Marke
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 355 x 375 x 200 mm / 14 x 14.8 x 7.9 inch
  • External source of data
  • E. Erb 3-907007-36-0
  • Source of data
  • Radiokatalog Band 2, Ernst Erb

 Collections | Museums | Literature

Collections

The model NF-Telefonrundspruch is part of the collections of the following members.

 Forum