Second what Newbee said.
When you go to pull the repaired tube from the tube socket, the soldered pin is likely going to stay behind in the socket, and then you're going to have to open the amp and push out the pin (if you can).
Buy a new tube.
When you go to pull the repaired tube from the tube socket, the soldered pin is likely going to stay behind in the socket, and then you're going to have to open the amp and push out the pin (if you can).
Buy a new tube.