I believed the plasma speaker I found on the Internet, was a good design. Because I found it on "Instructables website. They said it worked, I believed it. However, I couldn't make it work, but that doesn't mean I did it correctly, so I put it into LT Spice and I was able to get a reasonable example of the circuit to function. I don't think it's the best design out their like the author is saying, a "Reliable Plasma Speaker" he ran for 6hrs with no failures or heat stresses.
I'm suspect now, because "he" put a cap in the driver going to the GDT. With it included in LT Spice it wouldn't drive, until I removed it. I haven't had time to put it on the Development board, I will sometime soon. I will take some sample voltages and see if it's all a bunch of hokum or if the guy was really onto something? I don't know yet.
Yes, I'm a stubborn ass. Yes, it's how I learn, it's cost me money and time in the past but, I do learn a lot out of it.
He will get his experience the hard way, just let him crash and burn.