Search Results

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  Photographs

  Helipot Model 5533 Single-Turn Wirewound Potentiometer with Cartridges

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Cartridges, Potentiometer, Beckman Instruments, Inc., Ammunition
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  Photographs

  Helipot Series 7260 Multi-Turn Wirewound Potentiometers

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
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  2 items
  Manuscripts

  Test Specification for Glass Electrodes

  • Final draft

  • 1955-Feb-25

  The foldering of this document suggests it was written by Edwin Arthur. As in a 1957 document, "beauty" was the first criteria to be evaluated.

  The glass electrodes were used in Beckman pH meters and various other…

  • Subject Electrodes, Scientific apparatus and instruments, Electrodes, Glass, Beckman Instruments, Inc.
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  3 items
  Manuscripts

  pH in Ceramics

  • Remarks by Edwin P. Arthur before the Los Angeles Section of the American Ceramic Society March 9, 1955

  • 1955-Mar-09

  In his address to the American Ceramic Society, Edwin Arthur discussed the importance of pH--and, by extension, the measurement of pH with Beckman instruments--in the work of ceramists.

  Arnold Beckman invented his…

  • Author Arthur, Edwin P.
  • Subject Scientific apparatus and instruments, Speeches, addresses, etc., Ceramics, Hydrogen-ion concentration--Measurement, Hydrogen-ion concentration, American Ceramic Society, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 7233 Cutaway Precision Potentiometer

  • 1950 – 1969

  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…

  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Beckman Models 942, 943, and 948 Motor Potentiometers

  • 1950 – 1969

  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 Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 943 and 939 Potentiometers

  • 1950 – 1969

  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 Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 3351 Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 938 and 939 G70 Potentiometers

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Beckman Helipot Model 3301 Cermet Precision Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Ceramic metals, Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model B Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Beckman Model 7620 potentiometer with tartan backdrop

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Tartans, Beckman Instruments, Inc., Potentiometer
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  Photographs

  Helipot Model C Multi-Turn Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 7620 Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 9303 Multi-Turn Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 7603 Multi-Turn Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 7221 Multi-Turn Wirewound Potentiometer

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helitrim trimming potentiometers applied to a circuit board

  • 1950 – 1969

  This photograph shows Helipot trimmers on a circuit board.

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

  Helipot Model 7263 and 7266 Wirewound Potentiometers

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helitrim trimming potentiometers group shot

  • 1950 – 1969

  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 Herb Radin and Associates
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helitrim Trimming Potentiometers

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model TP and TSP Wirewound Potentiometers

  • 1950 – 1969

  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 Karjalas' Photo Vision
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helitrim Trimming Potentiometers

  • 1950 – 1969

  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 Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 5103 and 8201 Wirewound Potentiometers

  • 1950 – 1969

  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 Karjalas' Photo Vision
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 5101 and 5103 Wirewound Potentiometers

  • 1950 – 1969

  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 Karjalas' Photo Vision
  • Subject Potentiometer, Beckman Instruments, Inc.