Voltage regulators maintain a constant voltage level in electrical devices.
Though the photograph is labeled as Series 804, the pictured component reads 802.
|View in library catalog|
Armstrong & Hess. “Beckman Series 802 Voltage Regulator, Regarded by a Woman,” 1950–1969. Beckman Historical Collection, Box 85. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/rb68xc27h.
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