On 9/1/06, William Donzelli <wdonzelli at gmail.com> wrote:
A few years back I bought out the basement of an old
Burroughs ECD
guy, and I seem to remember seeing something about hex Nixies. In the
zillions of Nixies I got out of there, none were hex, although there
were many real oddballs in the bunch (Pixies, dual numeral, symbols).
Who knows - perhaps hex Nixies never got out of the lab.
I remember reading recently on a Nixie clock web page that 12 shaped
electrodes was about the limit for a nixie (no matter what the shape).
I'd guess that there a) wasn't enough depth, and b) too much blockage
of the rear-most electrodes to be useful and/or c) not enough pins in
the base.
I'm not saying that nobody made hex nixies, but I think they were rare
even back in the day.
-ethan