Holy Crap!! I've got one of these!! Mine says S3X on the side. I tried, but I could not get mine to operate. Does anyone out there have a set of instructions that I could have a photocopy, to see if mine will work??? I've seen demonstrations of these on youtube. Help anyone??
Try this link:
http://www.austrohungaro.com/synthesizer/SynareS3-repairmanual.pdf
I used to use one in an ensemble I was in back in the 80's. It was out around the same time as Joe Pollard's Syndrum though probably not as good IMO. Analog is all the rage these days. I used to have an ARP2600 in MINT condition that I loaned to a keyboard player years ago. He managed to lose it. Wish I had that now as they are worth quite a lot.