used this component:
IC CA3140 - 1 PCs
12V DC Fan - 1 PCs
2N2222 Transistor - 1 PCs
1N4007 PN Junction Diode - 1 PCs
10uF Capacitor - 1 PCs
4.7K NTC Thermistor - 1 PCs
500K Preset - 1 PCs
1 Kilo-ohm Resistor - 2 PCs
1.5 Kilo-ohm Resistor - 1 PCs
12V DC Power Source

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