Search
- Bergmann & Company Resistance Box, 1881-1889 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- 1881-1889
- Collections - Artifact
Bergmann & Company Resistance Box, 1881-1889
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- General Electric Edison Number 6 Rheostat, circa 1892 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- circa 1892
- Collections - Artifact
General Electric Edison Number 6 Rheostat, circa 1892
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- Bergmann & Company Edison Number 4 Rheostat, circa 1883 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- circa 1883
- Collections - Artifact
Bergmann & Company Edison Number 4 Rheostat, circa 1883
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- Fort Wayne Type F Field Rheostat, 1899-1911 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- 1899-1911
- Collections - Artifact
Fort Wayne Type F Field Rheostat, 1899-1911
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- IRC Rheostat, 1925-1935 - When a knob on an electrical device is turned, or a slider is moved, the resistance of the circuit is increased or decreased. The rheostat regulates these operations. Common uses of the rheostat may be found in the volume control knob of a radio, a light switch dimmer, or the speed selection on a fan or motor.
- 1925-1935
- Collections - Artifact
IRC Rheostat, 1925-1935
When a knob on an electrical device is turned, or a slider is moved, the resistance of the circuit is increased or decreased. The rheostat regulates these operations. Common uses of the rheostat may be found in the volume control knob of a radio, a light switch dimmer, or the speed selection on a fan or motor.
- AEG Power Control Rheostat, 1920-1930 - This radio equipment was used at the German-built Tuckerton Wireless Station in New Jersey. A powerful 820-foot antenna communicated with an identical station in Germany. National security concerns during WWI led to the seizure of Tuckerton by the U.S. government in 1917. It is cited to be the origin of information leaks leading to the RMS <em>Lusitania</em> disaster through U-boat attack.
- 1920-1930
- Collections - Artifact
AEG Power Control Rheostat, 1920-1930
This radio equipment was used at the German-built Tuckerton Wireless Station in New Jersey. A powerful 820-foot antenna communicated with an identical station in Germany. National security concerns during WWI led to the seizure of Tuckerton by the U.S. government in 1917. It is cited to be the origin of information leaks leading to the RMS Lusitania disaster through U-boat attack.
- Rheostat - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- Collections - Artifact
Rheostat
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- Westinghouse Type AOC Rheostat, 1888-1920 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- 1888-1920
- Collections - Artifact
Westinghouse Type AOC Rheostat, 1888-1920
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- Fort Wayne Type F Rheostat, 1899-1911 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- 1899-1911
- Collections - Artifact
Fort Wayne Type F Rheostat, 1899-1911
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- Cutler-Hammer Rheostat, 1898-1920 - Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.
- 1898-1920
- Collections - Artifact
Cutler-Hammer Rheostat, 1898-1920
Rheostats vary the amount of electrical resistance in a circuit. They proved beneficial as the use of electrical power expanded in the late 1800s. Among their many applications, rheostats helped motors start safely, controlled motor speed, maintained a constant current in battery chargers, and adjusted volume and light levels.