BASIC TIMING CIRCUITS

Basic Monostable Multivibrator

Basic Astable Multivibrator

Op Amp Square Wave Generator

Op Amp Monostable Multivibrator

555 Timer Astable Multivibrator

555 Timer Monostable Multivibrator

SPECIAL TIMING CIRCUITS

555 'One-shot' Circuit as a Mechanical Switch Debouncer

Dual-Frequency PLL Oscillator

Frequency Divider

AC Lamp Flasher

555-BASED TONE / WAVEFORM GENERATING CIRCUITS

Audible Metronome

Punk Console

Warbler Siren

Tone Burst Generator

3-Mode Tone Generator

Electronic Toy Organ

Voltage-Controlled Oscillator (VCO)

Variable Frequency Tone Generator

NON-555-BASED TONE / WAVEFORM GENERATING CIRCUITS

Sine Wave Generator

Quadrature Oscillator

Function/Waveform Generator

Learn more about the 555 Timer IC and its applications...