Human Sensing Circuits

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Phototransistor 555 Timer
PC ROM emulator circuit
Greenhouse irrigation controller ( PIC16F84 )
Loop Antenna For 3.5 Mhz
Amplifier Output Delay with Relay Schematic Diagram
Audio and Video signal Distribution Amplifier circuit
Fly auto disinfestation effect circuit
6 to 35kV substation cable entry into the segment of Lightning b