• Country
• Austria

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

• Year
• 1928

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 98119

• • Brand: Elektrot.Fabrik Ludwig Neumann

• Main principle
• RF-Circuit or wave trap (separate, can also be an antenna with amp.)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• No Power needed

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Sperrkreis für U4 / U4W - Ingelen, Elektrotechnische

• Dimensions (WHD)
• 85 x 110 x 150 mm / 3.3 x 4.3 x 5.9 inch

• Notes
• passend zu Ingelen U4 und U4W.

• Net weight (2.2 lb = 1 kg)
• 0.6 kg / 1 lb 5.1 oz (1.322 lb)

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

• Author
• Model page created by Alois Steiner. 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