• Year
  • 1943–1945
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 12620

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

 Technical Specifications

  • Number of Tubes
  • 6
  • Main principle
  • Superheterodyne (common); ZF/IF 471 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • Alternating Current supply (AC) / 110-240 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 20 cm = 7.9 inch
  • Power out
  • 4.5 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 644 - Niesen, Constructions
  • Dimensions (WHD)
  • 530 x 350 x 220 mm / 20.9 x 13.8 x 8.7 inch
  • Notes
  • Lt. Schaltbild EBL21. In Sammlerexemplar (Chassisstempel) und auf der Abbildung aber EBL1, erkennbar an der Gitterkappe (die EBL21 hat keinen Obenanschluss).
  • Net weight (2.2 lb = 1 kg)
  • 11.7 kg / 25 lb 12.3 oz (25.771 lb)
  • Price in first year of sale
  • 500.00 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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