I had to try it... I just had to. :biggrin1: As a part of my home brew electronics lab, tucked away in a corner of the bedroom, I had go get some sort of vacuum-pump so I could handle those small SMT components. And those pumps are expensive! Then I read about some re-engineered fish-tank air pumps, and I tried it. It worked perfectly. So there I sat, happy and satisfied. My new geek-toy was perfect. -And then I started thinking.... A vacuum pump..... Hmmm... Now, what would happen if I connected the pump to my penis-pump-tube? And so I did... Carefully I switched it on.. Would it be to much? Or to little? And it turns out to be perfect! The pressure is just right to give a good swelling feeling, but not so much that the dick gets all purple and that stuff. And I turn it on and off to get it just right. Ha ha. Now that's alternative use of electronics tools. And now I'm thinking about building some gadget with a built in sensor to control the pump and manage the pressure electronically.