Hi, I have just made an update to the web site of my PolyKorg Clone project: http://www.oldcrows.net/~jhaible/polykorg/jh_polykorg_clone.html The new (updated) stuff is the Patch Storage (all discrete CMOS logic), and the Ensemble. Unlike the original PS3200, I have chosen a circuit based on the ARP Omni (I). JH.