Fume extractor for soldering….

  After making more pcb’s to solder, I finally decided it was time to build a fume extractor.  With all the spare parts I have laying around it wouldnt be that hard to contruct.  I etched a small pcb for using an LM317 voltage regulator as a ghetto speed control for a 70mm PC cooling fan.  The box was constructed out of various scrap pieces around the basement.  With everything finished I think a coat of paint will help, and a charcoal filter from the local Salvation Army will complete the project.

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