• Country
• United States of America (USA)

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

• Year
• 1925–1928 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 66078

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

• Number of Tubes
• 2

• Valves / Tubes
• 205D 205D

• Main principle
• Audio-Amplification; 1 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: 45-A - Western Electric Company Inc.;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• The 45A is similar to the 25A plus a built-in +B supply. One 205D acts as an audio amplifier, the other 205D is used as a rectifier for +B. The set has three extra outputs for different +B voltages to supply auxiliary equipment.

• External source of data
• Ernst Erb

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

• Mentioned in
• Classic Cones

• Other Models

• Here you find 166 models, 143 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)