Mini DC Motor Based Drill Speed Controller Using LM317

This project will control the speed of your hobby drill with changing output voltage.  Uses the industry famous LM317 in TO220 package for delivering variable output (Voltage).   Supply input 15 VAC/DC, 1 A Output : upto 12 VDC Bridge rectifier made using discrete 1 A diodes LED indication for input Thermal overload/short circuit protection (provided by IC feature) Heatsink

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