Hi guys, I have been stock piling bar-graph tubes for a while now due to their relatively cheap price and potential for interesting looking clocks or other animated displays. Due to a few being smashed in a recent shipment I decided to sit down and work through testing all 450 or so IN-9's that I have to see what they are like.
Now, the first interesting point is that it seems that the white topped IN-9 can be either Neon or Argon, it seems most of mine are Argon which is quite annoying as the neon is a much richer red! I actually paid a bit more for a couple of purple topped argon tubes assuming them to be a lovely purple colour hence I was disappointed to find they are identical to about 70% of my conventional IN-9's (and badly cathode poisoned)! This brings me to the second point and a quick question, has anyone got any advice on getting these things to behave a bit better, some have fairly epic cathode poisoning with the glow starting in the middle or snapping to / hugging the other end or making large jumps up the tube. Are these things usually quite awful or have I just got bad batches? I have tried burning some in at upto about 40mA which has resolved some of the minor issues but on some seems to make them even more keen to glow from the other end... I have a few hundred IN-13's to test as well soon and am just hoping they are not as bad as these have turned out to be... Any advice on these tubes would be appreciated, hopefully a 64 channel VU meter will follow before long ;-) - Alex -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/W7oabYSL9SgJ. For more options, visit https://groups.google.com/groups/opt_out.
