Astable Multivibrator with 555
Astable Multivibrator with 555 or Astable 555 Timer Flasher
This is a tutorial with calculator to help learn the application of 555 which is a very rare chip innovation. It is simple, versatile, flexible and programmable (by tweaking of pots).
If you are starting with electronics, this is the first step. So do it now ! Do-It-Yourself.
- 555 Timer Tutorials
- 555 Timer/Oscillator Tutorial
- 555 Timer Calculator
- 555 and 556 Timer Circuits
- LM555 Timer Circuits
The Gadget Link for Astable 555 Oscillator

