• Country
• United States of America (USA)

• Manufacturer / Brand
• Tri-City Radio Supply Co. (Tresco); Davenport, Iowa

• Year
• 1921/1922

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

• Radiomuseum.org ID
• 321351

• 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 Tuner Set Cat. No. 9 - Tri-City Radio Supply Co.

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

• Dimensions (WHD)
• 5 x 4 x 5 inch / 127 x 102 x 127 mm

• Notes

• Tresco Long Wave Tuner 

  Catalog No. 9

  Wave Length Range: 5,000 to 25,000 Meters.

• Net weight (2.2 lb = 1 kg)
• 5 lb (5 lb 0 oz) / 2.270 kg

• Price in first year of sale
• 15.00 $

• Mentioned in
• - - Manufacturers Literature (1921-1922 Tresco Radio Apparatus catalog page 7)

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

• Other Models

• Here you find 80 models, 53 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Tri-City Radio Supply Co. (Tresco); Davenport, Iowa