Here's the thing, though. Stephen at Synthwood had to cannibalize his own CS15 for parts to make it work, and we can't have that. So, Lazyweb, I'm asking you for help. The three ICs we're looking for:

iG00156 (VCF)
TA7179 (regulator)
YM24800 (50 pin custom 'key assigner')

Now, just to pre-empt some needless typing, Senso (who are the normal suppliers of parts of this sort, and also have a page as Vintageplanet.nl) don't have these. Neither, obviously, does Yamaha. However, there are tens of thousands of these CS-series synths out there in the world, and I'm certain that one of you is aware of one that could be used for parts. Alternately, perhaps you've already parted one out and have the keyboard scanner and/or VCF left?

I know I should have given up on this little guy long ago, as there's really a limit of what you can realistically expect to expend, effort-wise, on a single-osc monosynth before you start to look suspiciously like Don Quixote, but I've decided that this busted-ass CS-5 Shall Not Go To The Dump. Not now, not ever. It is only two ICs away from the holy land. Help a brother out.

EDIT: We've found sources for all the parts. Thanks for the help! (Especially the Korean place. Expensive, but they have everything.) This CS-5 will cost, when all is said and done, about the same as your average Juno 60 or Mono/Poly. Despite its lowly stature, I plan to use it on every track I make until I feel I've got my money's worth.