This photograph is part of a series of marketing images used to demonstrate the small size of Helipot products.
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 in his popular pH meter. The precision of this dial caught the eye of the MIT Radiation Laboratory’s secret radar project during World War II. Beckman redesigned the helipot to meet the needs of the United States military and set up a separate company, also called Helipot, to keep up with the demand for these knobs. In the 1950s, Helipot was reincorporated into Beckman Instruments as the Helipot Division and continued to make potentiometers and other electrical components for decades, those tiny dials becoming staples of the electronics manufacturing industry.
|Original file type||TIFF|
|Rights||In Copyright - Rights-holder(s) Unlocatable or Unidentifiable|
|View in library catalog|
Armstrong & Hess. “Clothespin Holding a Model 79P Helitrim Trimming Potentiometer,” 1950–1969. Beckman Historical Collection, Box 85. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/gq67jr587.
This citation is automatically generated and may contain errors.
Download selected image
Previous image shift + or , Next image shift + or . Pan image Zoom in + or shift + Zoom out - or shift + Zoom to fit 0 Close viewer esc Also
Mouse click to zoom in; shift-click to zoom out. Drag to pan. Pinch to zoom on touch.