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555

Great Light Sensitive Intruder Alarm Circuit

April 19, 2020 by Angga Daren
intruder alarm circuit

Intruder alarms are a device that is quite popular in areas that have a high level of security, and civil …

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Categories 555 Circuits, Alarm Circuits Tags 555, alarm, intruder

Simple Hulda Clark’s Zapper Circuit with 555 IC

April 15, 2020 by Angga Daren
Hulda Clark's Zapper Circuit

This circuit was originally designed in 2003 by using IC 555 as a 30kHz square wave frequency generator. The red …

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Categories 555 Circuits Tags 555, zapper

Audio Controlled Mains Switch Circuit

March 25, 2020 by Angga Daren

This is the Audio Controlled Mains Switch diagram circuit that is most useful for audio or video equipment, where the …

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Categories 555 Circuits, Misc Tags 555, audio
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