On 4/3/2011 5:05 PM William Sommerwerck spake thus:

What I'm hoping for, of course, is some kewl effect, like
that purplish glow you sometimes see emanating from
the plates of overdriven tubes...

Unfortunately, there's no gas in a "vacuum" tube to glow.

So where does that purplish glow come from? I've seen it.


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