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In the past couple of months, AddOhms has caught a little bit of a following.  Nearly every day I have new questions coming my way.  I decided to it was time to address a couple of really good questions in a video response.  Ironically, in the video I mentioned giving “behind the scenes” info with each video.  However, for this one, I don’t really have any.  I can say that the next video is going to be on transistors…

The idea for AddOhms #8 has been around for quite some time.  I’m always trying to find ways to explain why current limiting resistors are necessary.  So while working in the shop one day, I decided to play with some LEDs and a bench-power supply.  Then I decided to record what happens.