• Country
• United States of America (USA)

• Manufacturer / Brand
• Kennedy Co., Colin B.; San Francisco & St.Louis

• Year
• 1920

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 221163

• • alternative name: Colin B. Kennedy Corp.
  • Brand: Globe Trotter

• Number of Tubes
• 3

• Valves / Tubes
• VT-Class-II or A_Moorhead VT-Class-II or A_Moorhead VT-Class-II or A_Moorhead

• Main principle
• Audio-Amplification; 3 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Wooden case

• from Radiomuseum.org
• Model: Three Stage Amplifier Type AU-3 - Kennedy Co., Colin B.; San

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Dimensions (WHD)
• 12.5 x 12.5 x 8.5 inch / 318 x 318 x 216 mm

• Notes
• Colin Kennedy Company Three Stage Audio Amplifier

• Net weight (2.2 lb = 1 kg)
• 20 lb (20 lb 0 oz) / 9.080 kg

• Price in first year of sale
• 90.00 $

• Mentioned in
• - - Manufacturers Literature (Circa 1920 Colin Kennedy Co. Catalogue of Radio Apparatus)

• Literature/Schematics (1)
• September 1920 Pacific Radio News magazine advertisement page 40

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 145 models, 76 with images and 67 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Kennedy Co., Colin B.; San Francisco & St.Louis