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- Westinghouse Style 4638A Voltmeter, 1900-1910 -

- 1900-1910
- Collections - Artifact
Westinghouse Style 4638A Voltmeter, 1900-1910
- Westinghouse Style 4654A Ammeter, 1900-1910 - In the late 1800s and early 1900s, companies that supplied electricity to consumers needed a variety of instruments to regulate and monitor electrical output. These instruments were vital to the operation of power stations and needed to be accurate and rugged. Ammeters--used to measure the current in a circuit--could be found on switchboards or connected to motors and generators.

- 1900-1910
- Collections - Artifact
Westinghouse Style 4654A Ammeter, 1900-1910
In the late 1800s and early 1900s, companies that supplied electricity to consumers needed a variety of instruments to regulate and monitor electrical output. These instruments were vital to the operation of power stations and needed to be accurate and rugged. Ammeters--used to measure the current in a circuit--could be found on switchboards or connected to motors and generators.