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- Longwave Amplifier, circa 1927 - This device was part of a system used to amplify the time signal from U.S. Navy station NAA at Arlington, Virginia. Station NAA received a time signal from the Naval Observatory clock via telegraph wire, rebroadcasting it via a powerful transmitter to receivers all over the nation. Americans utilized radio technology to set their clocks to this standardized signal.
- circa 1927
- Collections - Artifact
Longwave Amplifier, circa 1927
This device was part of a system used to amplify the time signal from U.S. Navy station NAA at Arlington, Virginia. Station NAA received a time signal from the Naval Observatory clock via telegraph wire, rebroadcasting it via a powerful transmitter to receivers all over the nation. Americans utilized radio technology to set their clocks to this standardized signal.
- Silver-Marshall Radio Console Speaker, Model 851, 1929-1932 -
- 1929-1932
- Collections - Artifact
Silver-Marshall Radio Console Speaker, Model 851, 1929-1932
- Silver-Marshall Audio Frequency Transformer, 1924-1932 -
- 1924-1932
- Collections - Artifact
Silver-Marshall Audio Frequency Transformer, 1924-1932
- Silver-Marshall All-wave Radio Receiver, 1929-1932 -
- 1929-1932
- Collections - Artifact
Silver-Marshall All-wave Radio Receiver, 1929-1932
- Superheterodyne Radio Receiver Chassis, 1930-1932 -
- 1930-1932
- Collections - Artifact
Superheterodyne Radio Receiver Chassis, 1930-1932