Simple LED Flasher Circuit with Buzzer:
Components used in this Project:
- BC547/ BC548 Transistor
- 3V Active Buzzer
- 470uF 25V Capacitor
- 5MM Green LED
- 1k Resistor
Schematics:

Simple Push Button On off Switch with IRFZ44N Mosfet.
Components used in this Project:
- Push Button
- 1k Resistor
- IRFZ44N Mosfet
- 9V Battery
- 9V Battery Clip
- 12V DC Brushless fan
Schematics:
