• Country
• United States of America (USA)

• Manufacturer / Brand
• Brook Electronics Inc.; Elizabeth, N.J.

• Year
• 1954 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 134465

• Number of Tubes
• 5

• Valves / Tubes
• unknown_Tube

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: High Quality Audio Amplifier 4B - Brook Electronics Inc.;

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 14.5 x 3.5 x 9 inch / 368 x 89 x 229 mm

• Notes
• PreAmp, mono, with several phono equalization settings.

• Net weight (2.2 lb = 1 kg)
• 3.4 kg / 7 lb 7.8 oz (7.489 lb)

• Source of data
• -- Collector info (Sammler)

• Mentioned in
• Photofact Folder, Howard W. SAMS (230-4)

• Author
• Model page created by Gottfried Silberhorn. See "Data change" for further contributors.

• Other Models

• Here you find 10 models, 8 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Brook Electronics Inc.; Elizabeth, N.J.