'50 mercury radio stops working after a few mins

[jstout66]

I remember going to a local TV store as a kid.. (circa 1980) to get a Vibrator for our 1955 Chevy, and wondering why the store owner and his wife broke out into laughter when I asked for one, and saying "oh.. not the kind you use at home, but for a car" which caused the owner to choke and run to the back room. (I'm sure I didn't know what that meeant) ha!