Dal Wheeler wrote:
>
> What kinds of longevities can be expected with these kinds of displays?

I built a clock with twelve nixie tubes in 1987 and it has been on ever
since. The tubes show no degredation yet and they where not new to start
with.

So these tubes have been working for at least 130k hours! Gee, time flies
like an arrow and fruit flies like banana.   :-)

Paul.

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