DeForest Radio Transmitter Tube, circa 1918
01
Artifact Overview
Vacuum tubes appear in older radios, televisions, amplifiers, computers, and other electronic devices. Their function: to amplify and strengthen weak electronic signals. Typical tubes are sealed glass bulbs evacuated of gas, allowing electron flow to be influenced by an interior cathode, plate and grid. Perfected in 1906 by Lee De Forest, the vacuum tube was the genesis of a communications revolution.
Artifact Details
Artifact
Vacuum tube
Date Made
circa 1918
Location
Not on exhibit to the public.
Object ID
36.532.5
Credit
From the Collections of The Henry Ford.
Material
Brass (Alloy)
Glass (Material)
Dimensions
Diameter: 2.5 in
Height: 6 in
Inscriptions
on glass:
857
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