• Country
• United States of America (USA)

• Manufacturer / Brand
• Sleeper Radio Corp.; New York (NY)

• Year
• 1922

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 184064

• Number of Tubes
• 2

• Valves / Tubes
• UV201 UV201

• Main principle
• Audio-Amplification; 2 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: 2-Step Audio Amp Type 3100 - Sleeper Radio Corp.; New York

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

• Dimensions (WHD)
• 7.5 x 7.5 x 6.5 inch / 191 x 191 x 165 mm

• Notes
• Sleeper amp is marked 2- Step Amplifier Type 3100 This is the matching amp to the Type X1900 Regenerative Receiver

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

• Other Models

• Here you find 36 models, 22 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sleeper Radio Corp.; New York (NY)