Circuit Project Electronic

Red Alert Startrek Alarm by IC 555

The third circuit simulates the “Red Alert” siren from the TV show Star Trek. It uses two 555 timers in the circuit. ….

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This entry was posted on Sunday, August 31st, 2008 at 10:14 pm and is filed under alarm, audio. You can feed this entry. Responses are currently closed, but you can trackback from your own site.

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