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- Westinghouse Type SL Voltmeter, circa 1911 -
- circa 1911
- Collections - Artifact
Westinghouse Type SL Voltmeter, circa 1911
- Kelvin Graded Galvanometer, 1883 -
- 1883
- Collections - Artifact
Kelvin Graded Galvanometer, 1883
- Sensitive Research Instrument Corporation Model STVALV Voltmeter, 1950-1960 -
- 1950-1960
- Collections - Artifact
Sensitive Research Instrument Corporation Model STVALV Voltmeter, 1950-1960
- Weston Model 301 Voltmeter, circa 1911 -
- circa 1911
- Collections - Artifact
Weston Model 301 Voltmeter, circa 1911
- Syracuse Electric Instrument Company Voltmeter, 1900-1905 -
- 1900-1905
- Collections - Artifact
Syracuse Electric Instrument Company Voltmeter, 1900-1905
- Weston Voltmeter, Used at the Pontiac State Hospital, Pontiac, Michigan, 1901-1910 - In 1898, a modern electric light and power plant was completed at the Eastern Michigan Asylum in Pontiac. Inside, a range of engines, motors, machines and meters helped power the institution's growing infrastructure. This voltmeter was part of the improvements. In 1929, hospital administrators funded a new power plant and this voltmeter was donated to The Henry Ford.
- 1901-1910
- Collections - Artifact
Weston Voltmeter, Used at the Pontiac State Hospital, Pontiac, Michigan, 1901-1910
In 1898, a modern electric light and power plant was completed at the Eastern Michigan Asylum in Pontiac. Inside, a range of engines, motors, machines and meters helped power the institution's growing infrastructure. This voltmeter was part of the improvements. In 1929, hospital administrators funded a new power plant and this voltmeter was donated to The Henry Ford.
- Weston Voltmeter, 1913 -
- 1913
- Collections - Artifact
Weston Voltmeter, 1913
- Weston Model 156 Voltmeter, circa 1914 -
- circa 1914
- Collections - Artifact
Weston Model 156 Voltmeter, circa 1914
- Ayrton & Perry Voltmeter, 1883-1890 - Companies that generated and distributed electrical power in the late 1800s needed equipment to monitor and measure output. Apparatus used in scientific laboratories proved insufficient. Electrical engineers needed robust, rugged, and portable instruments that they could read quickly without performing complex calculations. William Ayrton and John Perry developed this direct reading voltmeter among other measuring instruments for the new industry.
- 1883-1890
- Collections - Artifact
Ayrton & Perry Voltmeter, 1883-1890
Companies that generated and distributed electrical power in the late 1800s needed equipment to monitor and measure output. Apparatus used in scientific laboratories proved insufficient. Electrical engineers needed robust, rugged, and portable instruments that they could read quickly without performing complex calculations. William Ayrton and John Perry developed this direct reading voltmeter among other measuring instruments for the new industry.
- Westinghouse Type TM Voltmeter, 1911-1925 -
- 1911-1925
- Collections - Artifact
Westinghouse Type TM Voltmeter, 1911-1925