The Project starts with an "Tama Techstar 306" The Project is called TekkStar, because this is what i use it for --- Analog Tekkno. A Fully Analog Drum-Expander out of the 80Å› Has Trigger Inputs, and Pad-Inputs - which are Velocity Sensitive. I decidet to take the Pad-Inputs and trigger it with differnt Voltages = Velocitys The Velocity has 4 Stages - 4 Differnt Resisotors on 4 DOUT-Pins... but later more...