/diy/ - Do It Yourself

Tube noob here, tried out various caps on it. 100nF, 2.2nF and 0.1nF. None quite fix it perfectly, but after I let the monitor warm up with the 0.1nF cap, the picture ringing almost entierly cleared up. But a trace of it still left. But my idea seems to actually fucking work.
I think my cheap aliexpress ceramic disks don't quite have low enough ESR to filter out 100-300mhz ringing effectively, I think I'll order a set of proper SMD ceramics and see if I can completely clamp the problem down with those.

But I'm rather surprised I actually managed to do this without killing myself or any of my hardware.