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555 timer IC facts for kids

Kids Encyclopedia Facts
555 timer circuit perforated board
A circuit using a 555 timer. The timer is the black rectangle.

The NE555 is a common IC (or integrated circuit) introduced in 1972. It is used in timers. It is popular among hobbyists and can be found in many electronics stores that sell bare components, such as RadioShack.

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555 timer IC Facts for Kids. Kiddle Encyclopedia.