OK. So tesla coil's can play music by rapidly turning off and on. And you can make a tesla coil using a transmitting tube. So....It begs the question.....How do we make it so I can play guitar through one. This is the basic circuit for a VTTC (vacuum tube tesla coil). What would be needed to play this sucker? In the current schematic L2 sets the frequency at which it oscillates through positive feedback. If you were to replaced L2 which some other high voltage musical signal to the grid, would it switch the coil on and off properly? Or would you keep L2 and inject a carrier signal on top of it? Surely someone on here can help me in this noble pursuit.