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- Western Electric Model 16B Transmitter Used by Detroit News Station W8XWJ, circa 1935 -
- circa 1935
- Collections - Artifact
Western Electric Model 16B Transmitter Used by Detroit News Station W8XWJ, circa 1935
- Telimco Spark Transmitter, Model 1086 - The Telimco is believed to be one of the first complete radio sets offered for sale to the general public. Listed in a 1905 issue of Scientific American, this wireless telegraph outfit was "guaranteed to work up to one mile." This artifact was donated by its inventor--Hugo Gernsback--one of the first publishers of the science fiction genre.
- 1905-1906
- Collections - Artifact
Telimco Spark Transmitter, Model 1086
The Telimco is believed to be one of the first complete radio sets offered for sale to the general public. Listed in a 1905 issue of Scientific American, this wireless telegraph outfit was "guaranteed to work up to one mile." This artifact was donated by its inventor--Hugo Gernsback--one of the first publishers of the science fiction genre.
- Spark Gap Transmitter, Used at Radio Station WNW, Built circa 1910 - 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.
- 1910
- Collections - Artifact
Spark Gap Transmitter, Used at Radio Station WNW, Built circa 1910
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.
- Radio Transmitter, circa 1936 -
- circa 1936
- Collections - Artifact
Radio Transmitter, circa 1936
- RCA Radio Telegraph Transmitter, Model ET-3650, 1927-1935 - This equipment transmitted wireless telegraph messages, either from ships at sea to stations on shore, or vice-versa. It was used as technical equipment by trained radio experts--likely members of the US Navy. The ability to transmit and receive telegraphs through ship-to-shore communication opened up new worlds of maritime messaging, previously reliant on visual signaling (flags) and noise-making devices (foghorns).
- 1927-1935
- Collections - Artifact
RCA Radio Telegraph Transmitter, Model ET-3650, 1927-1935
This equipment transmitted wireless telegraph messages, either from ships at sea to stations on shore, or vice-versa. It was used as technical equipment by trained radio experts--likely members of the US Navy. The ability to transmit and receive telegraphs through ship-to-shore communication opened up new worlds of maritime messaging, previously reliant on visual signaling (flags) and noise-making devices (foghorns).
- Radiation, Inc. RF Transmitter, Airborne Type AKT-6, circa 1951 - Telemetry systems collect and display instrument information from remote and often hazardous locations. Rocketry, underwater exploration, and tracking of wild animals are just some of the fields that depend upon radio telemetry. These particular units were used to collect data during Operation Teapot, a series of nuclear detonation tests undertaken by the United States in 1955 in Nevada.
- circa 1951
- Collections - Artifact
Radiation, Inc. RF Transmitter, Airborne Type AKT-6, circa 1951
Telemetry systems collect and display instrument information from remote and often hazardous locations. Rocketry, underwater exploration, and tracking of wild animals are just some of the fields that depend upon radio telemetry. These particular units were used to collect data during Operation Teapot, a series of nuclear detonation tests undertaken by the United States in 1955 in Nevada.
- Compressed Air Relay, circa 1916 -
- circa 1916
- Collections - Artifact
Compressed Air Relay, circa 1916
- Multi-Elmac Remote Control Transmitter for Garage Door Opener, Model HC-3, 1964-1967 -
- 1964-1967
- Collections - Artifact
Multi-Elmac Remote Control Transmitter for Garage Door Opener, Model HC-3, 1964-1967
- 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.
- Playskool Portable Baby Monitor, circa 1990 -
- circa 1990
- Collections - Artifact
Playskool Portable Baby Monitor, circa 1990