ZX Spectrum DIY Cook Book

This is for preservation purpose,  don't ask for help   ZX Spectrum DIY Cook Book 260 pages PDF This is my active years 2002-2008 developing interfaces and stuff for the ZX Spectrum Even 2 laptops where build, many CompactFlash interfaces ect. Book is covering schematics, pictures and ResiDOS the software for the interfaces    ZX Spectrum DIY Cook Book Files BinXfer, test sw for serial…