• Country
• Austria

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

• Year
• 1974/1975

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 171505

• • Brand: Elektrot.Fabrik Ludwig Neumann

• Number of Transistors
• 9

• Semiconductors
• CS9016 2SC785 2SC381 2SC381 2SC381 CS1312 CS1909 CS1910 CS1914

• Main principle
• Superheterodyne (common); ZF/IF 460/10700 kHz

• Tuned circuits
• 5 AM circuit(s)     8 FM circuit(s)

• Wave bands
• Broadcast, Long Wave, Short Wave plus FM or UHF.

• Power type and voltage
• Line / Batteries (any type) / 220 / 6 x 1,5 Volt

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

• Power out
• 0.6 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: TR-491 automatic - Ingelen, Elektrotechnische

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 245 x 155 x 80 mm / 9.6 x 6.1 x 3.1 inch

• Notes
• Das Modell TR-490 und TR-491 von Ingelen unterscheiden sich lediglich durch den Grill. TR-490 hat senkrechte Rillen; TR-491 hat runde Löcher.
  Schaltplan kann für beide Geräte verwendet werden.
  LW = 145-260 kHz
  MW = 510-1605 kHz
  KW = 5,8-16 MHz
  UKW = 87,5-104 MHz

• Net weight (2.2 lb = 1 kg)
• 1.2 kg / 2 lb 10.3 oz (2.643 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Arpad Roth † 27.3.17. 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