That makes more sense as to what I saw on the scope. I don't have a multimeter handy to get actual voltage measurements, but I thought it was closer to the 10 than the 5. (I'm not dealing with a very accurate device).
I grounded the oscilloscope on the positive node of the 9v power supply and probed the VCC once again and the voltage difference was negative. So for certain it's less than 9v (quite possibly 6v).
Once I dig up my multimeter, I'll find out what VCC is exactly.