Memo from Ed Molloy to Raymond I. Schiff
- 1957-May-29
In one of a series of memos regarding the Zeromatic pH meter, Ed Molloy outlines differences between the 9600 and H-2 models and proposes solutions for grounding the instrument.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off rapid development not only of Beckman Instruments, Inc. but also of the electronic scientific instrument industry.
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Cite as
Molloy, Ed. “Memo from Ed Molloy to Raymond I. Schiff,” May 29, 1957. Beckman Historical Collection, Box 18, Folder 23. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zw12z569x.
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