Posted inSound Generator
Make Simple Electronic Buzzer circuit
This is buzzer circuit easy to build with small size,cheaper using normal transistor and small piezo speaker can use for 3V to 12V as use parts resistors[...]
Posted inSound Generator
4 Simple Door Buzzer Circuits
Use low voltage so safe. I am boring old buzzer. When use AC line, danger of leakage power in the heavy rain, 3 circuits can help you!..
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Posted inControls & Timers
Simple time Delay Circuit using MOSFET
For learn about MOSFET. I recommend Time Delay circuit easy to make and long time and a few parts than normal transistor
Posted inControls & Timers
CD4060 Timer Control Circuits with alarm, 19 seconds to 5 hours
This is IC 4060 Timer circuit. When rises time that is set, Suppose set 5 minutes time. after all time to 5 minutes. the circuit will emit a sound of buzzer once. [...]
Posted inSound Generator
2 Headlight Warning buzzer reminder circuit
Often drivers forgot to turn off lights when parking. They cannot start the machine, ran out battery. This Headlight Warning buzzer circuit can help.