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- Case and Handset for Motorola Handie-Talkie FM Radiophone, 1950-1959 -
- 1950-1959
- Collections - Artifact
Case and Handset for Motorola Handie-Talkie FM Radiophone, 1950-1959
- Antenna Insulator, 1935 - 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.
- 1935
- Collections - Artifact
Antenna Insulator, 1935
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.
- Engineer Ole Garras Receiving Switching Orders by Radio/Telephone, Ford Motor Company Rouge Plant Railroad Yard, August 1950 - Some 100 miles of railroad track covered the grounds of Ford Motor Company's Rouge plant. The automaker maintained its own fleet of locomotives to move incoming railcars loaded with raw materials, and outgoing railcars filled with finished parts and automobiles, around the complex. Additionally, specialized tank cars ferried molten iron from the factory's blast furnaces to its foundry.
- August 14, 1950
- Collections - Artifact
Engineer Ole Garras Receiving Switching Orders by Radio/Telephone, Ford Motor Company Rouge Plant Railroad Yard, August 1950
Some 100 miles of railroad track covered the grounds of Ford Motor Company's Rouge plant. The automaker maintained its own fleet of locomotives to move incoming railcars loaded with raw materials, and outgoing railcars filled with finished parts and automobiles, around the complex. Additionally, specialized tank cars ferried molten iron from the factory's blast furnaces to its foundry.
- De Forest Singing Arc Type Radiophone Transmitter, 1907 - Lee de Forest was a telecommunications inventor, responsible for the Audion vacuum tube. In 1907, his "radiophone" allowed phonograph music and human voice to broadcast wirelessly. The device used a "singing arc" to generate radio carrier signals. The US Navy purchased six radiotelephones for installation on the Great White Fleet. This is one of the earliest radiotelephones made by de Forest.
- 1907
- Collections - Artifact
De Forest Singing Arc Type Radiophone Transmitter, 1907
Lee de Forest was a telecommunications inventor, responsible for the Audion vacuum tube. In 1907, his "radiophone" allowed phonograph music and human voice to broadcast wirelessly. The device used a "singing arc" to generate radio carrier signals. The US Navy purchased six radiotelephones for installation on the Great White Fleet. This is one of the earliest radiotelephones made by de Forest.