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R. Stern writes –

“I work in a computer lab with a physical computing studio, and recently I cleaned out the component closet. It occurred to me that the reason we had a build up of unlabled resistors was because noone knew how to read them without the Resistulator widget or a resistance calculator website, so I made a sign to tack into the cabinet itself for offline calculation. You can download the PDF for your own use. “Link.


  • HOW TO – Read color coded resistors – Link.
  • Read resistors with Resistulator – Link.

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.

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