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Uploaded on Apr 17, 2011
A tutorial on the LM317 voltage regulator. Shows you how to make a 1.25 to 25V adjustable voltage supply, or choose any other output voltage you want. An example of a fan speed controller is shown. LM317s on Amazon: http://amzn.to/2jvp5Vi Want more easy to follow videos about electronics? Check out my website http://www.afrotechmods.com