• Year
  • 1930 ??
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 32582
    • alternative name: Amertran

 Technical Specifications

  • Number of Tubes
  • 3
  • Wave bands
  • - without
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • from Radiomuseum.org
  • Model: Amertran 25-A A Unit - American Transformer Co.;
  • Notes
  • Low power (driver) amplifier.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

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