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Scientific apparatus and instruments, Electronics

Potentiometer

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Potentiometers are used to measure electromotive force (emf) by balancing it with a known emf. The concept was first developed in 1841 by J. C. Poggendorff and improved throughout the 19th century by Latimer Clark and J. A. Fleming.

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Medium
Extent
  • 14.0 cm H x 27.0 cm W x 18.6 cm D
Inscription
  • (On right knob) "MILLI-VOLTS"
  • (Top of panel) "LEEDS & NORTHRUP CO. / PHILADELPHIA / 167099 / MADE IN U.S.A."
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Rights Creative Commons Attribution 4.0 International License
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  • Courtesy of Science History Institute

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Science History Institute. Potentiometer. Photograph, 2016. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/0g354f27r.

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