New acquisition...

Nice machine. The QX10 is one of my favourite desktop CP/M machines. The video system is based round a 7220, the serial port (IIRC) uses a 7201. amd it's got those lovely 1/3 height floppy drives with linear positioners (like tiny RK05s...) One thing to be aware of. The video board cna use wither 4116s or 4164s -- 16 of either, all must be the same type. There are some obvious links to move if you upgrade the RAM (if you don't shift them, you'll ruin the 4164s by applying 12V to them!), but there are also some decoupling capacitors that _must_ be removed if you use 4164s. If not, you get ome odd corruption after the screen has scrolled a few times. Don't ask how I found this out... I think the heardware manual is on the web somewhere, so I won't have to say 'fourth bookshelf, between the CoCo3 service manaul and the HP5245 counter manaul' :-) I beleive there are offiically different keyboards for CP/M and Valdocs. My QX10 came with CP/M, I have never seen Valdocs. I seem to recall it was reported as being somewhat slow, wann't it written in a TIL, not machine code? -tony