(→Links) |
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===555 Timer=== | ===555 Timer=== | ||
http://www.555-timer-circuits.com/ | * http://www.555-timer-circuits.com/ | ||
http://en.wikipedia.org/wiki/555_timer_IC | * http://en.wikipedia.org/wiki/555_timer_IC |
(→Links) |
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Line 23: | Line 23: | ||
===555 Timer=== | ===555 Timer=== | ||
http://www.555-timer-circuits.com/ | * http://www.555-timer-circuits.com/ | ||
http://en.wikipedia.org/wiki/555_timer_IC | * http://en.wikipedia.org/wiki/555_timer_IC |