• Country
• United States of America (USA)

• Manufacturer / Brand
• Colby's Telegraph School; Auburn, New York

• Year
• 1922 ?

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 354520

• Number of Tubes
• 3

• Valves / Tubes
• UV200 UV201 UV201

• Main principle
• Detector with Vacuum Tube (Valve), no tuner; 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: Detector Amplifier - Colby's Telegraph School;

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

• Dimensions (WHD)
• 19.5 x 8 x 8.25 inch / 495 x 203 x 210 mm

• Notes

• Colby's Telegraph School Detector and Two-Stage Audio Amplifier
   
   

   

• Mentioned in
• -- Original prospect or advert

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

• Other Models

• Here you find 12 models, 12 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Colby's Telegraph School; Auburn, New York