The Origin of Standard Resistor Values: A Fascinating History | Jason O

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SUMMARY

The standard resistor values were established based on a systematic approach that incorporates the E12 and E24 series, which utilize multiples of 1, 2, 5, and 10. This methodology ensures a logical progression of values that are easy to remember and apply in electronic design. The color coding of resistors, which follows the ROYGBIV spectrum, aids in identifying these values quickly and accurately. The discussion highlights the importance of these standards in organizing and utilizing resistor collections effectively.

PREREQUISITES
  • Understanding of E12 and E24 resistor series
  • Familiarity with resistor color coding
  • Basic knowledge of electronic components
  • Experience with organizing electronic components
NEXT STEPS
  • Research the E12 and E24 resistor series in detail
  • Learn about resistor color code interpretation
  • Explore the historical development of electronic component standards
  • Investigate best practices for organizing electronic component collections
USEFUL FOR

Electronics hobbyists, engineers, and students interested in understanding resistor values and their historical context will benefit from this discussion.

Jdo300
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Hello Everyone,

I was spending some time today organizing my resistor collection into drawers when this nagging question came to mind. How did they come up with the standard resistor values that we have now? There must have been some kind of rationale to it as one would normally expect the values to be even multiples of 1, 2, 5, or 10s. Does anyone have any insight into this? Let's here what you all think as I'm sure I can't be the first person to wonder about this.

Thanks,
Jason O
 
Engineering news on Phys.org
The colors are related to the colors of the visible spectrum (ROYGBIV) increasing from brown-red (lower frequency) to blue-violet (higher frequency)
 

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