• Country
• Austria

• Manufacturer / Brand
• Ingelen, Elektrotechnische Fabrik Ing. Ludwig Neumann GmbH; Wien

• Year
• 1938/1939

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 9071

• • Brand: Elektrot.Fabrik Ludwig Neumann

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

• Number of Tubes
• 4

• Valves / Tubes
• KK2 KF3 KBC1 KL4

• Main principle
• Superheterodyne (common); ZF/IF 128 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Storage and/or dry batteries / 2 & 130 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 439B - Ingelen, Elektrotechnische

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 462 x 351 x 249 mm / 18.2 x 13.8 x 9.8 inch

• Notes
• Ingelen Batterie-Heim-Empfänger 439.
  Skalen-Beleuchtung abschaltbar. Gehäuse: Edelholzkassette mit Metallstäben verziert. Die erforderlichen Batterien können im Apparat untergebracht werden.

• Net weight (2.2 lb = 1 kg)
• 10 kg / 22 lb 0.4 oz (22.026 lb)

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

• Source of data
• Handbuch WDRG 1938 / Radiokatalog Band 2, Ernst Erb

• Circuit diagram reference
• Lange+Schenk+FS-Röhrenbestückung

• Other Models

• Here you find 448 models, 398 with images and 322 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Ingelen, Elektrotechnische Fabrik Ing. Ludwig Neumann GmbH; Wien