Search Results

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  Photographs

  Various models of Beckman pH meters

  • 1960s

  This group photograph appears to include Models G, N, N2, 72, and Pocket pH meters.

  Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…

  • Photographer Hesketh, Dean D.
  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Hydrogen-ion concentration, Beckman Instruments, Inc.
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  Photographs

  Beckman Glucose Analyzer and Sample Incubator

  • Circa 1969

  The Glucose Analyzer was developed by James Sternberg in 1969 and was one of several very successful medical testing and analysis instruments that Beckman Instruments produced in the 1970s. Its size, speed, and price…

  • Photographer Armstrong & Hess
  • Subject Medical laboratories--Equipment and supplies, Glucose--Analysis, Blood sugar--Analysis, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Calomel reference electrode, side fill, #78026V

  • 1960s

  • Photographer Hesketh, Dean D.
  • Subject Electrodes, Beckman Instruments, Inc.
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  Photographs

  Low resistance glass electrode #78074V

  • 1960s

  • Photographer Hesketh, Dean D.
  • Subject Electrodes, Glass, Beckman Instruments, Inc.
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  Photographs

  Long reservoir reference electrode #78090V

  • 1950 – 1969

  • Photographer Dietrich, T. A.
  • Subject Electrodes, Beckman Instruments, Inc.
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  Photographs

  Beckman carbon frit reference electrode #78019V

  • 1960s

  • Photographer Hesketh, Dean D.
  • Subject Electrodes, Carbon, Beckman Instruments, Inc.
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  Photographs

  Beckman reference electrode #92301

  • 1950 – 1969

  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…

  • Photographer Dietrich, T. A.
  • Subject Electrodes, Hydrogen-ion concentration--Measurement--Instruments, Hydrogen-ion concentration, Beckman Instruments, Inc.
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  Photographs

  Beckman Custom Electrode

  • 1960s

  This electrode was designed for use with a 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…

  • Photographer Hesketh, Dean D.
  • Subject Electrodes, Hydrogen-ion concentration--Measurement--Instruments, Hydrogen-ion concentration, Beckman Instruments, Inc.
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  Photographs

  Beckman GC-45 gas chromatograph

  • 1969-May

  The GC-45 debuted in the late 1960s.

  Beckman Instruments entered the gas chromatograph business in 1956 with the acquisition of the successful Watts Manufacturing Company. Later that year, Beckman Instruments produced…

  • Photographer Beckman Instruments Photographic Services Section
  • Subject Scientific apparatus and instruments, Gas chromatography, Gas chromatography--Instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman Model R-110 Microzone Densitometer

  • 1960s

  Beckman introduced the Model R-110 Microzone Densitometer in 1967. Densitometers measure density by scanning electrophoresis media.

  • Photographer Armstrong & Hess
  • Subject Densitometry, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Beckman pH 4, 7 & 10 Buffer Solutions

  • 1969

  The three pH buffer solutions were color-coded Red (pH 4), Green (pH 7), and Blue (pH 10).

  • Photographer Beckman Instruments Photographic Services Section
  • Subject Hydrogen-ion concentration--Measurement, Buffer solutions, Beckman Instruments, Inc.
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  Photographs

  Helipot Switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Series 1390 Circuit Deck Cermet Switch

  • 1950 – 1969

  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Cermet Switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Series 1390 Circuit Deck Cermet Switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Servo Systems

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Servomechanisms, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 964 Servo Amplifier and Model 982 Power Supply

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Servomechanisms, Beckman Instruments, Inc.
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  Photographs

  Helipot Cermet Switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Cermet Switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Circuit Deck Switch

  • 1950 – 1969

  • Manufacturer Armstrong & Hess
  • Subject Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Circuit Deck Switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Helipot Cermet Switch

  • 1950 – 1969

  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Circuit deck of a Beckman cermet switch

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Ceramic metals, Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Beckman Model 375 Switch

  • 1950 – 1969

  • Manufacturer Herb Radin and Associates
  • Subject Electric switchgear, Beckman Instruments, Inc.
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  Photographs

  Beckman Model 376 Switch

  • 1950 – 1969

  • Photographer Herb Radin and Associates
  • Subject Electric switchgear, Beckman Instruments, Inc.