Great Light Sensitive Intruder Alarm Circuit
Intruder alarms are a device that is quite popular in areas that have a high level of security, and civil …
555
Simple Hulda Clark’s Zapper Circuit with 555 IC
This circuit was originally designed in 2003 by using IC 555 as a 30kHz square wave frequency generator. The red …
Audio Controlled Mains Switch Circuit
This is the Audio Controlled Mains Switch diagram circuit that is most useful for audio or video equipment, where the …
