Basic Electrical and Electronic Circuit Symbols

Electronic circuit symbols are graphical representations used to depict different electronic components and devices in schematic diagrams. These symbols provide a standardized way for engineers, technicians, and hobbyists to communicate and understand circuit designs without the need for detailed illustrations of physical components. Here are some common electronic circuit symbols: These are just a few… Read More »

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Electronic Siren

This is Electronic Siren circuit diagram which use standard discrete components. The sound produced imitates the rise and fall of an American police siren. When first switched on the 10u capacitors is discharged and both transistors are off. When the push button switch is pressed to 10u capacitor will charge via the 22k resistor. This… Read More »

Laptop / Notebook Protector

This is laptop / notebook protector circuit to protect your laptop or notebook or netbook from being stolen. Fixed in-side the laptop case, it will sound a loud alarm when someone tries to take the laptop. This highly sensitive circuit uses a homemade tilt switch to activate the alarm through tilting of the laptop case.… Read More »