Question for the group...I am curious about tube life span...If a tube is rated for say, 10,000 hours I assume that includes any time being on rather than when a signal is going through it. So if the amp is running but I am not using it then that adds to the time on the tube.
Am I right about that?
In most amps the current through the tubes is the same whether audio is applied or not.
And with audio the average current is the same.
So just leaving the amp on is using up the tubes as much as if the music was playing.