This photograph is part of a series documenting the manufacturing processes Beckman Instruments used to produce electronic components. The photographs, and a detailed description of cermet trimmer fabrication, appeared in the Spring 1966 issue of the in-house publication Helinews.
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Herb Radin and Associates. “Beckman Model 61 Potentiometer (Cermet Screening),” circa 1966. Beckman Historical Collection, Box 85. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/5999n3723.
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