• Year
  • 1948 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 196860

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

 Technical Specifications

  • Number of Tubes
  • 10
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hi-Fi equipment
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 10D - Brook Electronics Inc.;
  • Shape
  • Chassis only or for «building in»
  • Notes
  • The Brook 10D is an AC operated 10 tube High Fidelity mono audio power amplifier. This amplifier required the use of a separate preamplifier when used in a typical Hi-Fi audio system.

    NOTE: The SAMS Photofact covers both the 10C and the 10D amplifiers and focuses on the 10C model.  The SAMS Photofact does not make it clear that the 10D model is a 10 tube amplifier that uses a dual-triode 7N7 for the input AF and AF phase inversion stages, while the 10C model is an 11 tube amplifier that uses two different triode 7A4 tubes for the same function.


  • Author
  • Model page created by Ernst Erb. See "Data change" for further contributors.

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