Ha...just reminded me; I've got the full rack (TX816 I think - anyway, it's 8 DX7 modules in a rack). Like you, I have no idea if they still work as they haven't been touched in @ 30 years (although they have travelled from Philly to Hawaii to Florida to Georgia, as has all of my vintage gear. It costed me @ $22,000 to move my 'belongings' to Hawaii and @ $19,000 to move back (to Florida). Talk about wasting money. A quick search on Google showed that they're worth a nice penney right now. Maybe I'll try to get my grandson to pack it up and sell it for half of whatever we can get for it. But first, I'll have to see if it still works. If it doesn't, then it's landfill bound .

chas