• Year
  • 1931 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 38023

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • from Radiomuseum.org
  • Model: A-250 - Electrad Inc.; New York NY
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 2 = 1932 (Models 1931/1932)
  • Literature/Schematics (1)
  • -- Schematic

 Collections | Museums | Literature

Literature

The model A-250 is documented in the following literature.

 Forum