Good afternoon folks and welcome to another Circuit Monday todays circuit is Ajustable Power supply Components needed all my Circuits are breadboarded on the prototype board I made here LM317 voltage regulator 100k potentiometer a resistor that will give you the output voltage you would like if this case id like 9volts so I am using a 100 ohms resistor Uses for this circuit sometimes we can't find the right voltage power supply for our projects or project need more that one voltage to run using this three component circuit can handle many different task Step one Place the LM317T into the board Step two The next step is to place the potentiometer to board leaving a bigger gap than I did Step three the third step is to attach your ground to one of the out side pins of your potentiometer Step four The next is to connect your resistor to the middle pin of your potentiometer and the adjust pin on the LM317 (please see pinout ) Step five the final step is to attach your power source (12v in this case ) to the V in pin of the LM317 Testing now the circuit is finished you can test with a multimeter by connecting it to the V out and the ground Fritzing layouts Don't forget to check out the daily dobby on social media Facebook Twitter Thanks for taking the time to read this if you liked what you've read then please check back tomorrow after 17.00bst for another update thanks again. Dobby