• Year
  • 1941 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 40546
    • alternative name: Ferguson Co., J.B. || Ferguson Radio Corp. || Ferguson Radio &Television Co., Inc.

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 7140 Amplifier - Ferguson in the United States
  • Notes
  • Amplifier module with a radio set; push-pull af output stage.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 13 = 1942 and before

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