Well I found this pretty nice old Miyata Two Ten yesterday. And unfortunately the seat tube is stuck in the frame. It's sticking out about 3 inches so at least it's not all the way down in there.
I checked Sheldon brown's site, and I know the topic has been covered plenty of times before. Any other ideas? I have tried to pry the frame apart a bit, and tapped on the seat post with a block of wood, and a hammer. It's in there good though. WD 40 is the only lubricant I have.
The shifters were stuck to but I did manage to free them. The cables are done, and need to be replaced.
Not much money. $40 was paid at the crazy thrift.