Memo from Raymond I. Schiff to Robert L. Jackson
- 1957-Jun-04
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Small JPG1200 x 1531px — 426 KBFull-sized JPG2730 x 3482px — 1.9 MBOriginal fileTIFF — 2730 x 3482px — 27.3 MBIn this memorandum, Raymond Schiff discussed problems with the Zeromatic pH meter.
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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Schiff, Raymond I. “Memo from Raymond I. Schiff to Robert L. Jackson,” June 4, 1957. Beckman Historical Collection, Box 18, Folder 23. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/1n79h4762.
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