Does your electrostatic do this cool thing?

[jpdylon]

I've been testing and adjusting my old motorola 7vt5 since the re-cap and It's looking much better with a functional focus control

After about 20 minutes of watching i shut it off and headed back to my bedroom. When leaving I turned off the lights and noticed a flashing at my workbench. Looking at the tv in the dark I saw some flickering on the tube face. About every 10-20 seconds, what looked like watching a lightening storm through clouds briefly appeared on the screen. It did this for what must have been 5 minutes before the tube face was completely dark again.

I was just facinated. I've never seen such a thing before. Keep in mind the set was unplugged and away from any power source. I wish I coulda cought it on video (might have been too dark) I thought it was cool.

Anybody else who has an electrostatic set seen this before?