• Country
• United States of America (USA)

• Manufacturer / Brand
• Radio Telephone Shop, The; San Francisco, California

• Year
• 1921

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 221819

• 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: Two-Stage Audio Amplifier - Radio Telephone Shop, The; San

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

• Notes
• The Radio Telephone Shop Two-Stage Audio Amplifier

• Literature/Schematics (1)
• Radio for November 1921 magazine advertisement page 186

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

• Other Models

• Here you find 1 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Radio Telephone Shop, The; San Francisco, California