I have tried fiddling with the ham radio dozens of times as Tally Ho suggested, but I can't get the tube to break so I can get it out. I have tried all combinations of numbers and morse codes. Any suggestions are greatly appreciated.
The tube blows out after you have turned the power on and off a few times. Watch it; don't stick anything metallic in the socket, once you pull out the dead tube, or it's "Second Chance" for Floridagal.