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- Lowenstein Radio Company Condenser, 1906-1907 -
- 1906-1907
- Collections - Artifact
Lowenstein Radio Company Condenser, 1906-1907
- Lowenstein Quenched Spark Gap Transmitter, Type A-16G, Used aboard the USS Rowan, circa 1916 - Spark gap transmitters were the first means of practical radio transmission for the first thirty years of radio development. By the end of WWI, vacuum tube technology advanced sufficiently, replacing the spark gap. Even though the vacuum tube ensured more efficient and reliable transmissions, commercial use of spark gap transmitters continued up until WWII as back-up transmitters.
- circa 1916
- Collections - Artifact
Lowenstein Quenched Spark Gap Transmitter, Type A-16G, Used aboard the USS Rowan, circa 1916
Spark gap transmitters were the first means of practical radio transmission for the first thirty years of radio development. By the end of WWI, vacuum tube technology advanced sufficiently, replacing the spark gap. Even though the vacuum tube ensured more efficient and reliable transmissions, commercial use of spark gap transmitters continued up until WWII as back-up transmitters.
- Antenna Switch, Type SE-165, circa 1918 -
- circa 1918
- Collections - Artifact
Antenna Switch, Type SE-165, circa 1918