Just out of interest, what machine do you use?
A much-hacked IBM5170. In other words a PC/AT. Admittedly I have the
later version motherboard with the 16MHz clock crystal. There is a
486-kludgeboard in place of the 80286 processor so the thing can run
linux. Apart from that, the only non-original bit is the hard disk, an
IDE drive.I am using an IBM5151 MDA monitor too...
-tony