• Country
• United States of America (USA)

• Manufacturer / Brand
• Twitchell Radio Co., S. A.; Minneapolis, Minnesota

• Year
• 1924

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

• Radiomuseum.org ID
• 220473

• Main principle
• Tuner pre 1926 (not a wave trap)

• Tuned circuits
• 1 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Auxiliary Tuner - Twitchell Radio Co., S. A.;

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

• Notes
• Twitchell Auxiliary Tuner.

• Price in first year of sale
• 15.00 USD

• Literature/Schematics (1)
• May 1924 Popular Radio magazine advertisement page 84

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

• Other Models

• Here you find 8 models, 1 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Twitchell Radio Co., S. A.; Minneapolis, Minnesota