I've got some nice ol' gas-discharge amber
ones in the [UK] junk box
which will get here to me one day - from what I remember of the PCBs
that they were mounted on, they originally came from fuel pumps.
Ohhhhh,
Panaplex? Basically seven-segment neon displays? I LOVE
those. Unfortunately they tend to go for big bucks. If you have some,
you are morally obligated to do something cool with them! Even if it's
just yet another clock...they're beautiful displays.
Those digits are about 4" high, and the panels are made by Babcock (two
panels w/4 digits each), but the numerals look a lot like the smaller
Panaplex displays I have in an old Heathkit digital clock. They came out
of an old industrial display of some sort, I interfaced an AVR
microcontroller to the logic / power board they came attached to and
made a nice clock out of 'em...