• Country
• United States of America (USA)

• Manufacturer / Brand
• International Radio Telegraph Co.; New York City

• Year
• 1920

• Category
• Radio module post 1925 (not a part, not a key)

• Radiomuseum.org ID
• 265920

• Number of Tubes
• 2

• Valves / Tubes
• VT-Class-I or B_Moorhead-Shaw VT-Class-II or A_Moorhead

• Main principle
• Detector with Vacuum Tube (Valve), no tuner; 1 AF stage(s)

• Wave bands
• - without

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

• Loudspeaker
• - For headphones or amp.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Detector Amplifier Type RTD-100A - International Radio Telegraph

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

• Price in first year of sale
• 35.00 $

• Mentioned in
• June 1920, Electrical Merchandising magazine advertisement page 173

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

• Other Models

• Here you find 8 models, 7 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from International Radio Telegraph Co.; New York City