Better 555 Duty Cycle Control (PWM).
14:48
Adjust the Duty Cycle of the 555 Timer without Changing the Frequency
30:13
How a 555 Works as a Timer.
6:16
NE555: The MOSFET Driver That Time Forgot (Until Now!)
22:35
Impedance Explained.
23:20
Make: Electronics Book Experiment 17 - Building an alarm system
34:13
A bit of Op-Amp History and Applications
42:18
Using the 555 Timer
22:47