• Country
• United States of America (USA)

• Manufacturer / Brand
• Duck Co., J.J. and William B.; Toledo, OH

• Year
• 1917

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

• Radiomuseum.org ID
• 259051

• 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
• Various materials

• from Radiomuseum.org
• Model: Long Wave Tuner - Duck Co., J.J. and William B.;

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 10 x 0 x 10 inch / 254 x 0 x 254 mm

• Notes

• Duck Long Wave Tuner. 2,000 to 15,000 meters tuning range.

• Net weight (2.2 lb = 1 kg)
• 30 lb (30 lb 0 oz) / 13.620 kg

• Price in first year of sale
• 27.50 $

• Literature/Schematics (2)
• June 1917, The Electrical Experimenter magazine advertisement on page 151

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

• Other Models

• Here you find 57 models, 34 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Duck Co., J.J. and William B.; Toledo, OH