• Country
• United States of America (USA)

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

• Year
• 1920/1921

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

• Radiomuseum.org ID
• 195847

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

• Wave bands
• Long Wave and/or Very Low Frequency (VLF).

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Long Wave Regenerative Tuner - Colby's Telegraph School;

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

• Dimensions (WHD)
• 10.25 x 10 x 5.5 inch / 260 x 254 x 140 mm

• Notes

• Colby's Telegraph School Long Wave Tuner.

  Wavelength Range: 2,500 to 20,000 meters

• Price in first year of sale
• 34.50 $

• Mentioned in
• Radio News (September, 1921 Radio News page 255)

• Literature/Schematics (1)
• December 1920 Radio News advertisement page 407

• 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