EEVblog #555 - 555 Timer Kit

Dave celebrates the classic 555 timer IC by building the Evil Mad Scientist "three fives" discrete timer kit.
Some scope measurements and an explanation of the internal 555 timer circuitry follow.
Construction: http://youtu.be/U6qZPx4uD0g?t=5m10s
Testing: http://youtu.be/U6qZPx4uD0g?t=34m35s
Circuit Description: http://youtu.be/U6qZPx4uD0g?t=38m16s
Waveforms: http://youtu.be/U6qZPx4uD0g?t=54m35s
Classic old Signetics 555 timer datasheet: http://serge.bertorello.free.fr/compsnts/ne555%20&%20ne556.pdf
The kit: http://shop.evilmadscientist.com/productsmenu/tinykitlist/652
Han's Book on Analog chip design: http://www.designinganalogchips.com/
Forum: http://www.eevblog.com/forum/blog/eevblog-555-555-timer-kit/

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