If you use a software emulator you run a CoCo3 twice that speed at 50 MHz and it cost nothing. (Since I already had a powerful PC.) Steve On 6/9/2011 8:44 AM, Frank Pittel wrote: > I got a DE1 fpga board from terasic for under $200 and not only does it model a > coco-3 exactly but it can also run at 25MHZ!! >