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Audio Controlled Mains Switch Circuit

2014-12-03 21:35  
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This circuit will switch off the line supply to audio or video equipment if there has been no input signal for about 2 seconds. SI provides manual operation and S2 acts as a reset. This circuit allows for time to change a tape or compact disc.
Audio Controlled Mains Switch Circuit

About 50 mV of audio signal is necessary.



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