Solder Aid


Posted on Jul 31, 2015

Solder aid is an extremely useful device which sucks the poisonous gas due to melted soldering alloy and sucks it away using an ordinary 12VDC fan removed from a computer. The circuit is shown in Fig 1. It is basically a 1.25-14.5VDC regulated voltage source built around LM317 IC.


Solder Aid
Click here to download the full size of the above Circuit.

A super bright white LED is also attached to the fan as shown in Fig. 2 to illuminate the soldering area. By  4beowulf7 - [email protected]


PCB file: Click here to download 255 file.PCB file: Click here to download 255 file.


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