Search Results
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Helitrim Models 56L and 56P trimming potentiometers on an orange background
- 1960 – 1979
Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…
- Photographer Photographers III
- Subject Potentiometer, Beckman Instruments, Inc.
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Helipot Motor Potentiometer
- 1960 – 1979
The photograph is not attributed, but the autumnal background and inscriptions are consistent with a series of component photographs taken by Photographers III.
Potentiometers regulate the flow of electricity, like the…
- Photographer Photographers III
- Subject Potentiometer, Beckman Instruments, Inc.
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Helipot Model 806 Voltage Regulators
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Microelectronics, Voltage regulators, Beckman Instruments, Inc.
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Helipot Model 806 Voltage Regulators
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Microelectronics, Voltage regulators, Beckman Instruments, Inc.
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Helipot Model 806 Voltage Regulators
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Microelectronics, Voltage regulators, Beckman Instruments, Inc.
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Helipot Model 61 Helitrim trimming potentiometer
- 1960 – 1979
Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…
- Photographer Photographers III
- Subject Potentiometer, Beckman Instruments, Inc.
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Helipot Cermet Potentiometer
- 1960 – 1979
The photograph is not attributed, but the autumnal background and inscriptions are consistent with a series of component photographs taken by Photographers III.
Potentiometers regulate the flow of electricity, like the…
- Photographer Photographers III
- Subject Potentiometer, Beckman Instruments, Inc.
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2 items
Beckman Zimm Viscometer
- 1960 – 1979
Viscometers measure viscosity, the resistance of fluids to flow or stress (this could also be thought of as a liquid's thickness).
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2 items
Beckman Viscometer
- 1960 – 1979
Viscometers measure viscosity, the resistance of fluids to flow or stress (this could also be thought of as a liquid's thickness).
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Beckman Models 76P and 61 Helitrim trimming potentiometers
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Potentiometer, Beckman Instruments, Inc.
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Beckman Model C2 Oxygen Analyzer with Headspace Sampler
- 1960 – 1979
A Beckman oxygen analyzer and Precision Scientific Company sampler help to ensure food safety by measuring the oxygen content of the headspace inside food packaging. Oxygen readings that are too high could indicate an…
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Beckman Model C2 Oxygen Analyzer
- 1960 – 1979
Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety,…
- Photographer Armstrong & Hess
- Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
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Beckman Model 841 Ladder Switch
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Microelectronics, Beckman Instruments, Inc.
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Beckman Model 827 voltage regulator
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Voltage regulators, Beckman Instruments, Inc.
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Beckman Model 821 voltage regulator
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Voltage regulators, Beckman Instruments, Inc.
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Beckman Model 63 Helitrim trimming potentiometers
- 1960 – 1979
This is one of a series of color photographs featuring Helipot components against autumnal backgrounds.
- Photographer Photographers III
- Subject Potentiometer, Beckman Instruments, Inc.
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2 items
Beckman Model 190 and 190B Microcalorimeters
- 1960 – 1979
Calorimeters measure the amount of heat involved in chemical reactions and some other processes.
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2 items
Beckman Model 144 UV Photometer
- 1950 – 1979
Photometers measure the intensity of light or optical properties (like illuminance and fluorescence) of surfaces and solutions.
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Beckman Low-Shear Viscometer
- 1960 – 1979
Viscometers measure viscosity, the resistance of fluids to flow or stress (this could also be thought of as a liquid's thickness).
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11 items
Arnold O. Beckman with employees
- Circa 1940 – circa 1979
Though the photo set is identified as Beckman with "employees," some of the photographs depict ceremonies and visits to non-corporate locations, like CalTech. Some photographs are attributed, dated (1941, 1962, 1967),…
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Unidentified man with instrument
- After 1949 – before 1976
A black and white photograph of an unidentified man standing next to an IBM 407 Accounting Machine. Introduced in 1949, the IBM 407 was one of a long line of IBM tabulating machines. The 407 read punched cards, totaled…
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Portrait of Eugene Garfield
- After 1960 – before 1975
Black and white photograph of Eugene Garfield (1925-2017), a prominent American information scientist and pioneer in the field of scientometrics. He was the founder of the Institute for Scientific Information (ISI), a…
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Letter of recommendation for Percy L. Julian
- After 1964 – before 1975
A letter of recommendation written by Ray Fields Dawson (1911-2012) on behalf of Percy Lavon Julian (1899-1975). Dawson is recommending that Julian receive an honorary degree from DePauw University due to his work…
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Business card of Percy L. Julian
- After 1961 – before 1975
Business card of Percy Lavon Julian (1899-1975), African American research chemist and pioneer in the chemical synthesis of medicinal drugs from plants. This card reflects Julian's position as the Director of the Julian…
- Creator Of Work Julian, Percy Lavon, 1899-1975
- Subject Julian, Percy Lavon, 1899-1975, Scientists, Black, Chemistry, Organic, Nonprofit organizations
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Glenn Seaborg and Lyndon B. Johnson
- After 1960 – before 1973
Black and white photograph showing Lyndon B. Johnson (1908-1973) speaking with Glenn Seaborg (1912-1999). Johnson has inscribed the photograph with a note and his signature, "To Dr. Glenn T. Seaborg with very high…