NF-Telefonrundspruch 23

Biennophone; (Marke)

  • Year
  • 1942/1943
  • Category
  • Wired Receiver (AF only)
  • Radiomuseum.org ID
  • 11596
    • 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
  • 3
  • 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; 250 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: NF-Telefonrundspruch 23 - Biennophone; Marke
  • Dimensions (WHD)
  • 450 x 260 x 210 mm / 17.7 x 10.2 x 8.3 inch
  • Notes
  • 33=EF22,EBL21,AZ21; NF-TR
  • Price in first year of sale
  • 288.00 SFr
  • 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.

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