Radio Shack doesn’t sell vary many radios any more. If I wanted to get a tube checked, I would need to drive to the next city over.
I let go of all vacuum tube equipment the year Gorm Mor was made — 1986. Yah, I still have the Heathkit vacuum-tube voltmeter (kit) my mother gave my father before I was born, but it’s not been fired up in decades and would need work to be restored to functionality, IF I could even buy the tube(s) it needs.