Yamaha CS-80

Ok, I may be a bit of a synth nut, but this is pretty amazing for the time:

http://en.wikipedia.org/wiki/Yamaha_CS-80

More info about the CS-80:

**broken link removed**

The schematics are near the bottom of this page (use your browser's search feature):

**broken link removed**

The hardware designers were artists...

Ah yeah, I remember our music tech teacher mentioning it a few times whilst we were studying the Blade Runner soundtrack (its pretty much made on one of them ). I remember him mentioning the weight too

Certainly looks very complicated, really clever design though, no small task designing something like that.

If you search around on Youtube you can find Vangelis playing it...each key has aftertouch, so if you wiggle your fingers while holding the keys it'll adjust the envelope...