555 Timer Circuits

Electronic Sites

These sites are valuable to any electronics enthusiasts.

Electro Tech Online - A very large electronics forum.
FC's Electronic Circuits - A great site with schematics for a number of electronic circuits and links to other electronics pages.
PCBHeaven - Electronic projects, circuits, theory and PIC tutorials.
Basic Electronics Tutorials - Basic Electronics Tutorials and Revision for Students and Beginners.
The Electronics Club - An excellent resource for beginners. With circuits, and theory.
ElectronicsTeacher.com - Electronic Tutorials, Electronic Project Kits, Robotics Guide for Students, Amateur and Professionals. Computer Architecture and Digital Circuits.
RF Cafe - Extensive resource for science and engineering.
Mad Lab - Produces a range of creative electronic kits for you to build at home or at school/college.
AVRSite - Electronic circuits based on AVR microcontrollers such as GSM SMS remote control, AVR low cost oscilloscope, AVR programmer, 2 channel RF remote control and many more.
Digital Timers & Clocks - ElectronicsUSA.com specializes in Digital Clocks, Digital Timers, Countdown Clocks, and Stopwatches. They also offer electronic kits, audio video switches, and Ham Radio accessories.
Best Microcontroller Projects - Here you can find microcontroller tools, projects and tutorials.
Electroniq - DIY electronics projects circuits diagrams

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<a href="http://www.555-timer-circuits.com">555 Timer Circuits</a> - All the electronics info you need to know about the 555 Timer. With over 80 circuits.