• Country
• Austria

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 171992

• • Brand: Elektrot.Fabrik Ludwig Neumann

• Number of Tubes
• 5

• Valves / Tubes
• AK2 AF7 AB2 AK1 AZ1

• 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
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 20 cm = 7.9 inch

• Material
• Bakelite case

• from Radiomuseum.org
• Model: US437W [Mit Schalltüren ] - Ingelen, Elektrotechnische

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

• Dimensions (WHD)
• 410 x 350 x 280 mm / 16.1 x 13.8 x 11 inch

• Net weight (2.2 lb = 1 kg)
• 12 kg / 26 lb 6.9 oz (26.432 lb)

• Circuit diagram reference
• Lange + Schenk (?)

• Author
• Model page created by Hans Martin Walchhofer. See "Data change" for further contributors.

• 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