Prophet 5? http://www.imt.net/~sounddoctorin/synthtec/sci/p5.htm paul perry Melb Aust ----- Original Message ----- From: "Ken Stone" > > Is the Fairchild "vintage" chip the uA F772 sacred to synth users/repairers > in any way? I notice it is around 5 euro at one parts supplier, and most of > the world doesn't seem to acknowledge it exists.