555 Timer as an Astable and Monostable Multi-Vibrator with circuit diagram
Inductor-based astable 555 timer circuit - EDN Asia
3pcs/lot DIY Kit 555 Multibrator Suite NE555 Astable Circuit Practical Electronic Production Training Dual Flash LED Parts: Amazon.com: Industrial & Scientific
555 Timer IC - Working Principle, Block Diagram, Circuit Schematics
Monostable Multivibrator using IC 555. : Amazon.in: Industrial & Scientific
Amazon.com: The Ultimate Beginner's Guide to the 555 Timer: Build the Atari Punk Console and Other Breadboard Electronics Projects eBook : Rutherford, Jesse: Kindle Store