http://www.zxspectrum.00freehost.com/zxpc.html
http://www.speccy.org/trastero/cosas...eep/PC-ZX.html
http://velesoft.speccy.cz/other/pc2zx.png
Software for this interface can be ported for ZX clones/interfaces with 8255 or parallel ports and allram support. Yet exist also MB02+ and UR-4(with DIVIDE interface) installator. Need 5 output pins, 5 input pins, GND, PC parallel cable with 11 wires.
VELESOFT