ru4music
500+ Head-Fier
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- Oct 3, 2004
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I have a question relating to this topic.
Does a member know what we should be looking for or listening for when a tube or tubes are reaching their end life???
I don't know.
Do they just end up sounding worse? Lose power? Or just stop or blow up? Is there some signs?
I guess we just roll tubes to find out which tube or set of tubes are worn out as well.
An EOL tube (i.e. one that doesn't succumb to premature failure) will have lower MU conductance and won't amplify as much (e.g. less gain). However, it's been said that an audio vacuum tube sounds its best just before it dies. Measurements from a tube tester is probably the best way!