I ordered some stuff from Russia and it took 5 weeks to get here!! The MOTHER of all vacuum tubes....some of our younger FABO members might not know what a vacuum tube is???
I had a friend who had a CB radio amplifier that had one tube right in the center that was half that length, but TWICE as big around. It would modulate over 7500W. lol During the winter, he didn't have to cut the heater on when he was talkin on the radio.