Hi, Tony. You're up late too :-) Seems we have quite a lot in common :-) That would be great. What size EPROM shall I send you? Can you see if you can find the Flex disk one day, as well? I'll photocopy any of those I've got for you. Mail me a list. It's easy to fit such cards to my Atom, since it's missing the bottom half of the case :-) Was the Acorn DOS for the Atom or 6502-based System? I assume the 6809 ran some variant of Flex? Hmmm... I still have the Softy-1 schematics, and I'm sure that uses an SC/MP. I had a Softy-1 and I wish I still did, since not many programmers do the 3-rail devices these days. Now I have a little box that sits on the 1MHz bus (it was meant for a BBC B but I have it on my Archimedes 440 now) which does 2716 - 27128, and I use a little adaptor for 27256/27512. The Department has two S3's and an S4, which I'm occasionally allowed to borrow, since they do up to 27400x. I came across a pair of 1702's in a pile of junk a few weeks ago. they're getting rare, now. I also have all the bits to build the Elektor GAL programmer (Manfred Nosswitz's design). First I'm going to redo the PCB layout, as I intend to incorporate the daughter board (for the updated version) on the same PCB, and possibly use a different DAC (the original one is a rarity, and expensive). I have the disk for the s/ware as well, but I wish I could get the source -- it grieves me to have to run it on a PC instead of a real computer. -- Pete Peter Turnbull Dept. of Computer Science University of York