How to Drop 12 Volts to 9 Volts DC using 7809 Regulator ( Do It Yourself )
10:51
So Don't Throw Your Old Phone Charger Away! - More Than You Think !
11:12
The LM2575 Switching Voltage Regulator - #203
4:19
Convert #220 volt to high AMP 3v,6v,12v,24v,110v,180v DC LED driver, Transformerless multi output
8:14
12V Battery low voltage cut off Protection, Low Battery protection circuit
4:10
78xx Current Boosting: Circuit Design and Measurements
12:25
EEVblog 1622 - The BIG BEGINNER MISTAKE with Multimeters
15:10
Barn Find - What Is It - 1940's? Mystery Device Teardown!
21:13