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Published on 01 Mar 2014 | over 3 years ago

This video shows how to use the LM317 adjustable voltage regulator to make a simple adjustable power supply using just 3 components. The LM317, a 10k pot and a 180 ohm resistor. Optionally you can add a ceramic capacitor on the input and electrolytic capacitor on the output to smooth out any current ripples.

I show you how to crete the circuit on a breadboard and then show the simple adjustable voltage reulgator circuit placed on a homemade PCB, ready to be mounted inside a project box with banana input/output sockets.

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