RCA Radiotron Vacuum Tube, Model WD-11, 1923-1924
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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
1922-1924
Creator Notes
Made by Westinghouse Electric & Manufacturing Company in Pittsburgh, Pennsylvania, for Radio Corporation of America of New York, New York.
Location
Not on exhibit to the public.
Object ID
46.76.7
Credit
From the Collections of The Henry Ford.
Material
Glass (Material)
Metal
Plastic
Color
Silver (Color)
Dark brown
Dimensions
Length: 3.5 in
Diameter: 1.25 in
Inscriptions
on top of bulb:
RCA
on side of base:
RCA / RADIOTRON / - WD-11 -
on bottom of base:
LICENSED ONLY TO EXTENT / INDICATED ON CARTON.
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