Turn An Old PC Cooling Fan Into A Room Cooling Fan
The best way to keep yourself cool during summer!
The item you will need:
2x large cooling fans
Wood frames
12v power supply
2x 9v batteries and clips
Buck converter
1n4007 rectifier diod
10k ohm potentiometer
Knob
Washer
Nut
Perfboard
And tip122 transistor
#science #electronics #diy
