“Sequential Circuits Pro One Synthesizer Model 100 Sold AS-IS for restoration. It powers up. I am not familiar with these. I do not know history. I think it is from 1979. I assume the power on/off switch went out so the previous owner hardwired it on. The only way to turn it off on is plug/unplug. One key is higher than others. I opened it up and saw one pin on connector the 16 pin connector was broken off. (see photo) I may have done it opening it up. Those are the only things I noticed. Sold as-is for repairs.” Click here to visit listing on eBay
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