Geographic US437W Mit AL1

• 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
• 9026

• • Brand: Elektrot.Fabrik Ludwig Neumann

• Picture
• Schematics

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

• Number of Tubes
• 5

• Valves / Tubes
• AK2 AF7 AB2 AL1 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)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Geographic US437W [Mit AL1] - Ingelen, Elektrotechnische

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

• Dimensions (WHD)
• 540 x 355 x 320 mm / 21.3 x 14 x 12.6 inch

• Notes
•  

• Price in first year of sale
• 468.00 öS

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

• Source of data
• Radiokatalog Band 2, Ernst Erb

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

• Mentioned in
• Radios von gestern, 1. Auflage

• Picture reference
• Das Modell ist im «Radiokatalog» (Erb) abgebildet.

• Other Models

• Here you find 443 models, 391 with images and 321 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