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How to MAKE a speed control for a DC MOTOR easily!! In the video tutorial of EASY Projects with MOTORS and other ELECTRICAL machines, we are going to make a homemade tool or homemade invention that is a speed regulator for DC electric motors, we are going to use for this electronic project an NPN Darlington type transistor, we are going to use a recycled heat sink from other electronic cards of many electrical, electronic or household appliances, a virgin PCB to mount the electronic circuit, a 10k 1watt electrical resistor, a 1n4007 rectifier diode, a 10k potentiometer and we are going to make the tracks on the printed circuit with recycled electrical cable from many electronic devices already in disuse, tin, soldering iron or soldering iron and some various tools such as cutting pliers and others, a very useful homemade tool or homemade invention that will help us to vary the speed of DC electric motors up to 24v, in the video I will also place an electrical or electronic diagram of the circuit and a basic explanation of how this electronic circuit works so it is easier for you when assembling your own homemade regulator circuit with DARLINGTON transistor you can't miss this impressive video so you can do the project yourself which is very easy to do, if you like the work don't forget to leave your like, thanks ..