• Country
• United States of America (USA)

• Manufacturer / Brand
• Zenith Radio Corp.; Chicago, IL

• Year
• 1919

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 213805

• • alternative name: Chicago Radio Lab

• Number of Tubes
• 1

• Valves / Tubes
• Audion_dbw

• Main principle
• Audio-Amplification; 1 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: One Step Amplifier Type AMP-1 - Zenith Radio Corp.; Chicago,

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

• Notes
• Pre-Zenith Chicago Radio Laboratory One-Step Amplifier Type AMP-1

• Price in first year of sale
• 33.00 $

• Literature/Schematics (1)
• August 1919 QST magazine page 44

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

• Other Models

• Here you find 4504 models, 4100 with images and 3630 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL