So, uhhh...how are you supposed to get the knob off if you want to upgrade the faceplate, if not with brute force?

I was going to come back with some smart-ass remark like "Use gentle force, dummy..." but on reflection, that is a pretty darned good question.

If that knob is on really tight, there aren't a lot of options. I think Hugo said that as the unit gets warm, that O-ring grips even tighter, so my first thought of using a hair dryer to heat the knob probably would be counter-productive. So maybe if you put the empeg in the freezer for an hour or so, would that make the knob easier to remove?

Or, maybe you have to pull REALLY hard in order to damage the VFD?

I dunno -- my knob comes off pretty easily; any easier and I would have the slipping knob problem that others have had.

tanstaafl.

"There Ain't No Such Thing As A Free Lunch"