http://picasaweb.google.com/lh/photo...pkeuVrQOtl3S7g
http://picasaweb.google.com/10658384...at=directlink#
Author of scandoubler is David Luftner
tested on my ZX Spectrum 128+2. Scan RGBI and CSYNC values to 128kB sram. Source of CPLD will free. Soon.