Note: there is an error in the parts list. It should read: C4 and C5 = 4.7 uf electrolytic capacitors C6 and C7 = 470 uf electrolytic capacitors If you have any trouble reading the thing, I will be glad to send along a hard copy of the schematic/pictoral. If you would send me a "self-addressed stamped envelope" I'll pop a copy in the mail...I've made several photocopies and would be happy to send you one. My address is listed below. Have fun. Dick Richard Hill 1387 Antwerp Lane San Jose, CA 95118 - 3402