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- Antenna for an Acoustic Seismic Intrusion Detector, 1967-1972 -
- 1942-1965
- Collections - Artifact
Antenna for an Acoustic Seismic Intrusion Detector, 1967-1972
- E.F. Johnson Company Antenna Insulator, 1936-1950 - Insulators--made of poor electrical conductors such as glass, ceramic, plastic, or composite materials--help make electric power and communication transmission lines safe. They isolate wires from utility poles, transmission towers, and buildings--structures that are made of conductive materials that could cause signal degradation, power loss, fire, or pose a shock hazard if the lines touched them.
- 1936-1950
- Collections - Artifact
E.F. Johnson Company Antenna Insulator, 1936-1950
Insulators--made of poor electrical conductors such as glass, ceramic, plastic, or composite materials--help make electric power and communication transmission lines safe. They isolate wires from utility poles, transmission towers, and buildings--structures that are made of conductive materials that could cause signal degradation, power loss, fire, or pose a shock hazard if the lines touched them.
- Sony FM-AM Stereo Receiver, 1976 - This device is one part of a component stereo sound system. Component stereos were built up over time through the purchase of individual components that best suited the needs of a user: receiver-amplifiers, tape decks, speakers, turntables, and CD players. This model reflected changing trends in sound reproduction, allowing audiophiles to upgrade outdated or broken components as needed.
- 1976
- Collections - Artifact
Sony FM-AM Stereo Receiver, 1976
This device is one part of a component stereo sound system. Component stereos were built up over time through the purchase of individual components that best suited the needs of a user: receiver-amplifiers, tape decks, speakers, turntables, and CD players. This model reflected changing trends in sound reproduction, allowing audiophiles to upgrade outdated or broken components as needed.
- Western Electric Loop Antenna, 1924-1930 -
- 1924-1930
- Collections - Artifact
Western Electric Loop Antenna, 1924-1930
- Antenna Insulator, 1930-1940 - Insulators--made of poor electrical conductors such as glass, ceramic, plastic, or composite materials--help make electric power and communication transmission lines safe. They isolate wires from utility poles, transmission towers, and buildings--structures that are made of conductive materials that could cause signal degradation, power loss, fire, or pose a shock hazard if the lines touched them.
- 1930-1940
- Collections - Artifact
Antenna Insulator, 1930-1940
Insulators--made of poor electrical conductors such as glass, ceramic, plastic, or composite materials--help make electric power and communication transmission lines safe. They isolate wires from utility poles, transmission towers, and buildings--structures that are made of conductive materials that could cause signal degradation, power loss, fire, or pose a shock hazard if the lines touched them.
- TWA Experimental Anti-Snow Static Loop Antenna, 1937 - Airport radio navigation beacons required pilots to listen for Morse code patterns to hold the correct course--notoriously difficult during storms. In 1936, Transcontinental & Western Air introduced an anti-snow directional antenna which could be used, in high-static situations, to "home in" on airport radio signals. This loop was housed in a sleek metal enclosure, protecting it from the elements.
- 1937-1938
- Collections - Artifact
TWA Experimental Anti-Snow Static Loop Antenna, 1937
Airport radio navigation beacons required pilots to listen for Morse code patterns to hold the correct course--notoriously difficult during storms. In 1936, Transcontinental & Western Air introduced an anti-snow directional antenna which could be used, in high-static situations, to "home in" on airport radio signals. This loop was housed in a sleek metal enclosure, protecting it from the elements.
- "Merry Christmas to You, too!," 1951 - Since the late 1800s, sending Christmas cards to family, friends, and neighbors has become a holiday tradition for those who celebrate. Many cards feature traditional holiday images (Santa, trees, candles, etc.). Some even depict the new technologies that affect Americans' lives. This humorous card from the 1950s shows Santa and his reindeer entangled in television antennas sprouting on rooftops at that time.
- 1951
- Collections - Artifact
"Merry Christmas to You, too!," 1951
Since the late 1800s, sending Christmas cards to family, friends, and neighbors has become a holiday tradition for those who celebrate. Many cards feature traditional holiday images (Santa, trees, candles, etc.). Some even depict the new technologies that affect Americans' lives. This humorous card from the 1950s shows Santa and his reindeer entangled in television antennas sprouting on rooftops at that time.
- Warner Brothers Studios Portable Radio Broadcasting Station 6XBR near Denver, Colorado, 1926 -
- 1926
- Collections - Artifact
Warner Brothers Studios Portable Radio Broadcasting Station 6XBR near Denver, Colorado, 1926
- RCA Longwave Antenna Tuner, Type Y115, 1920-1921 -
- 1920-1921
- Collections - Artifact
RCA Longwave Antenna Tuner, Type Y115, 1920-1921
- General Electric Type CG-4023 Antenna Tester Unit, 1919 -
- 1919
- Collections - Artifact
General Electric Type CG-4023 Antenna Tester Unit, 1919