• Country
• United States of America (USA)

• Manufacturer / Brand
• Chambers F.B., Co.; Philadelphia, PA

• Year
• 1916

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

• Radiomuseum.org ID
• 138325

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

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: New Undamped Wave Coupler No.749 - Chambers F.B., Co.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 32 x 10 x 9 inch / 813 x 254 x 229 mm

• Notes
• "...tunes up to 15,000 meters".

• Net weight (2.2 lb = 1 kg)
• 5.7 kg / 12 lb 8.9 oz (12.555 lb)

• Price in first year of sale
• 18.00 $

• Mentioned in
• QST Nov.1916, Ads

• Author
• Model page created by Otto Frosinn. See "Data change" for further contributors.

• Other Models

• Here you find 15 models, 14 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Chambers F.B., Co.; Philadelphia, PA