Try some 866 high voltage rectifier tubes...more yummy purple glow.... On Thursday, January 9, 2014 7:19:37 PM UTC-5, [email protected] wrote: > > I acquired a few of these for free (not a bad price), and their faint > purplish glow doesn't produce much of a "wow" factor to show-off. I was > hoping that reverse-polarity would produce more glow; no such luck. Most of > the interesting glowing is hidden inside the metallic area of the tube. > Even with higher current, the glow was barely affected. It's so dim that it > wouldn't even make a decent night-light. > > Any ideas out there ? > > Since these aren't rare tubes (yet...), I'm tempted to repeat an > experiment I did in high school with a 0A2 regulator tube: I cranked so > much current thru it that the plate glowed red-hot, the glass softened and > due to the vacuum, and it shrank around the metal. Watching the poor tube > shrivel-up and die made me laugh so hard I cried. >
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