> Wikipedia seems to think that an "air amplifier" is a kind of > pneumatic piloted valve/fluid amplifier or pneumatic equivalent of a > transistor Sounds to me very much like it is operating rather like the vacuum source for the desoldering tool in a Weller iron - blow air across a venturi and you draw more with it. --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .