Stay cool this summer: PC Fan Mod

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Schematic: http://www.mediafire.com/view/bgeeix23hysq903/NE555.png
PWM video: http://youtu.be/jQ3JHknsM4o
Previous video: http://youtu.be/a6D6H6SLa_c
More project info on Instructables: http://www.instructables.com/id/Stay-cool-this-summer-PC-Fan-Mod/

You can get the required parts here (affiliate links):
Aliexpress:
1x NE555: https://s.click.aliexpress.com/e/_dTrUY9D
1x BC547: https://s.click.aliexpress.com/e/_dSqRC3z
2x 1kΩ Resistor (1/4W): https://s.click.aliexpress.com/e/_dTPpXjt
3x 1N4007 Diode: https://s.click.aliexpress.com/e/_dYR45Bh
1x 10kΩ Potentiometer (linear): https://s.click.aliexpress.com/e/_dX83GAF
2x 2.2nF Capacitor: https://s.click.aliexpress.com/e/_dU4FEsB
1x 10nF Capacitor: https://s.click.aliexpress.com/e/_dU4FEsB
1x Battery Clip: https://s.click.aliexpress.com/e/_d6x6Uq7

In this video I will show you how to modify a regular PC fan to use it as a portable fan. It is also quite useful as a fume extractor while soldering.

Music:
Ecstatic Wave by Jens Kiilstofte
https://machinimasound.com/music

Видео Stay cool this summer: PC Fan Mod канала GreatScott!