• Year
  • 1932/1933
  • Category
  • Wired Receiver (AF only)
  • Radiomuseum.org ID
  • 11285

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; 145; 220; 250 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: NF-Telefonrundspruch T2b - Autophon AG inkl. Téléphonie
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Notes
  • oder HP4100, PP4101, PV4100
  • Price in first year of sale
  • 198.00 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.
  • Picture reference
  • Das Modell ist im «Radiokatalog» (Erb) abgebildet.

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

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