Pavek Museum of Broadcasting. What can you expect from a museum that proudly boasts of its collection of vacuum tubes? Answer: A magnificent, utterly entertaining peek into the long history of radio and television. St. Louis Park’s decade-old Pavek Museum of Broadcasting has filled a warehouse with fascinating detritus from the long history of recorded sound, including bronze microphones that might be mistaken for objets d’art (and probably cost as much), plastic novelty radios constructed to look like characters from Disney and Pee Wee’s Playhouse, and a fully functioning quiz show set where you can test your knowledge of popular culture. Amazing. $3 for students, $5 general admission. 3515 Raleigh Ave., St. Louis Park. (952) 926-8198.