Bell Laboratory Submarine Cable Amplifier, Type 175HQ, 1950-1970
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This vacuum tube amplifier was designed to withstand severe conditions, as part of a submarine telephone cable. They were first installed and tested in 1950 as part of the Havana-Key West cable, and later the Newfoundland-Scotland transatlantic cable. Tubes like these turned weak signals into robust ones for over twenty years, aiding in reliable long-distance telephone communication.
This vacuum tube amplifier was designed to withstand severe conditions, as part of a submarine telephone cable. They were first installed and tested in 1950 as part of the Havana-Key West cable, and later the Newfoundland-Scotland transatlantic cable. Tubes like these turned weak signals into robust ones for over twenty years, aiding in reliable long-distance telephone communication.
Artifact
Vacuum tube
Date Made
1950-1970
Location
Not on exhibit to the public.
Object ID
00.1366.77
Credit
From the Collections of The Henry Ford.
Material
Ceramic (Material)
Glass (Material)
Non-ferrous Metal
Rubber (Material)
Tungsten
Dimensions
Height: 4 in
Diameter: 1.25 in
Inscriptions
175HQ AN337
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