Some time ago I read that it would be good practice to let each cathode lit at maximum rated current for about 2 minutes, I can't find that page no more so I am not too sure about the reasoning behind it. If metal sputters are a cause of the problem, it could more likely show up in these first 2 minutes of maximum drive I guess.
Putting the tubes in sockets would be an advantage in this case. I am actually surprised how easy it is to change a faulty (or broken) tube, it takes less effort than I had expected. It's quite easy to heat up all the legs together, take the tube out and then use some wick to empty the holes. Crucial here is to use a solder that has lots of flux. My board setup is different from yours, so sockets would simply not fit. Michel On Dec 7, 5:00 pm, threeneurons <[email protected]> wrote: > You just got unlucky. The metal that sputters off the cathodes, formed > crude metal film resistors; partial short. -- 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]. For more options, visit https://groups.google.com/groups/opt_out.
