De Forest Singing Arc Type Radiophone Transmitter, 1907
Add to SetSummary
Lee de Forest was a telecommunications inventor, responsible for the Audion vacuum tube. In 1907, his "radiophone" allowed phonograph music and human voice to broadcast wirelessly. The device used a "singing arc" to generate radio carrier signals. The US Navy purchased six radiotelephones for installation on the Great White Fleet. This is one of the earliest radiotelephones made by de Forest.
Lee de Forest was a telecommunications inventor, responsible for the Audion vacuum tube. In 1907, his "radiophone" allowed phonograph music and human voice to broadcast wirelessly. The device used a "singing arc" to generate radio carrier signals. The US Navy purchased six radiotelephones for installation on the Great White Fleet. This is one of the earliest radiotelephones made by de Forest.
Artifact
Radiophone
Date Made
1907
Keywords
Location
Not on exhibit to the public.
Object ID
40.581.6
Credit
From the Collections of The Henry Ford.
Material
Brass (Alloy)
Iron alloy
Nickel (Metal)
Rubber (Material)
Wood (Plant material)
Dimensions
Height: 17.5 in
Width: 12.5 in
Length: 17 in
Inscriptions
top, plaque: De Forest Radio-Telephone System Pats. No. 836015, 803199, 803513, 850917 and Other Patents No. D-60 The Radio-Telephone Co. New York, U.S.A. top, plaque: Transmitter Radio Telephone Swinging Arc Type 1907
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