• Country
• United States of America (USA)

• Manufacturer / Brand
• Multi-Audi-Fone; Elizabeth, N.J.

• Year
• 1916/1917

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

• Radiomuseum.org ID
• 195023

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

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Undamped Waver - Multi-Audi-Fone; Elizabeth, N.

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

• Dimensions (WHD)
• 24 x 16 x 10.5 inch / 610 x 406 x 267 mm

• Notes
• The Multi-Audi-Fone Undamped Waver was advertised in the November 1916 QST magazine. No specifications were given other than it would tune in the "foreign undamped" Stations. The Multi-Audi-Fone Undamped Waver was advertised in the November 1916 QST magazine and in a circa 1917 William Duck catalog. The Undamped Waver would receive undamped waves in the 3,000-15,000 meters wavelength range. This instrument was designed to be used with the Audion as an undamped detector. This instrument was housed in a polished solid mahogany case.

• Net weight (2.2 lb = 1 kg)
• 15 lb (15 lb 0 oz) / 6.810 kg

• Price in first year of sale
• 100.00 $

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

• Other Models

• Here you find 14 models, 11 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Multi-Audi-Fone; Elizabeth, N.J.