New PCBs have just arrived. It is biggest size PCB I have ever
designed/ordered.
Look at the PCB picture on my www.kosbo.com front page.
Hopefully there is no mistakes on PCB, even I have checked it several times.
So exciting, going to assemble first SP431 4 digits panaplex clock now
It appears that this glow is actually on the INSIDE SURFACE of the glass
envelope of the tube. It is therefore most likely, in my opinion, a
fluorescence, occuring on the glass itself from internal electron
bombardment. This same exact phenomena occurs on the INSIDE SURFACE of
many electron
OK, here's a pic of the mysterious green glow I sometimes see in my 5092
nixie tube. It's towards the rear of the tube.
Oh, that's nifty! I hadn't seen that effect before.
Krypton has some green spectral lines, so maybe this tube has trace-amounts
of Kr-86 to reduce ionization time. But
May be it's due to a gas mixture. Don't forget there is also a bit of
mercury in the tube the also has some green in the spectrum.
However, the color reminds me more the color that will be seen by burning
copper-salts. The color on the photo is not reliable, so it's only a
guess...
eric
