www.elby-designs.com/asm-1/overall.htm, Please observe! The ASM-1 PCB's has been discontinued. Check out the ASM-2 for a premade PCB.
Elby Designs is the maker of the ASM-1 and ASM-2 PCB's, Visit their site to get hold of a PCB. They have also made an improved design of the ASM-1 called the ASM1-Genie.