Solder Fume extractor
This is a computer cooling fan, which is driven by 555 timer at 12V, the blue thing is the pot to vary speed of the motor via PWM.
\[gallery orderby="title"\]This is a computer cooling fan, which is driven by 555 timer at 12V, the blue thing is the pot to vary speed of the motor via PWM.
\[gallery orderby="title"\]