Hi Folks, It's been a couple of decades since I had a turntable, I have what might be a new in box Dual 704 turntable.The turntable has what looks like all the original packing, and looks to be brand new, but I'm not sure. The cartridge is a VN35HE. I have no idea if it is brand new, somewhat used, or no good. How can I tell the condition of it? Also there appears to be some melted green goo on various parts, remnants are a kind of spongy material, how do I remove? Thanks, Ed