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Posts tagged detector

Infrared Motion Detector schema diagram

Infrared Motion Detector electronic circuit schematic diagram Using TR 2N2222, SY32PT    

SCR Transistor Tester circuit

SCR Transistor Tester circuit SCR Transistor Tester circuit

BF990A circuit and application Receiver tube Radio

BF990A circuit and application Receiver tube Radio vcc 9v

Electronics Schematic Diagram Infrared motion detector

Electronics Schematic Diagram Infrared motion detector PIR325 sensor has two sensing elements connected in a voltage bucking configuration. This arrangement cancels signals caused by vibration, temperature changes and sunlight. A body passing in front of the sensor will activate first one and then the other element whereas other sources will affect both elements simultaneously and […]

Cell Phone / mobile phones Detector circuit using CA3130, NE555, BC548

Cell Phone Detector circuit using CA3130, NE555, BC548 This detector functions let you know that nearby there are phones that activated from a distance of five feet. So that can be used to prevent the use of mobile phones in the exam room, secret room, a place of worship, etc. It is also useful to […]

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