• Country
• United States of America (USA)

• Manufacturer / Brand
• Western Electric Company Inc.; New York (NY)

• Year
• 1929 ??

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 66075

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

• Number of Tubes
• 3

• Valves / Tubes
• 239A 239A 239A

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / 12 & 390 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: 41-A Preamplifier - Western Electric Company Inc.;

• Shape
• Chassis only or for «building in»

• Notes
• Unit is part of wide range cinema amplifier system,

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Literature/Schematics (1)
• - - Manufacturers Literature

• Other Models

• Here you find 164 models, 141 with images and 33 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Western Electric Company Inc.; New York (NY)