#1
hey guys, I've had my valveking for a little over a year and so far everything seems fine but i wanna know what the average life expectancy of tubes are. are there any noticeable sign of when they go bad?
also what should i get to replace them?
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#2
I was going to tell you to hit up The Valveking Thread MkII but the answer is pretty much the same no matter what the amp.

There is no hard and fast rules when it comes to tubes. Some of it has to do with the quality of the tubes (not the greatest in the VK) and some of it has to do with how often you play, how hard you play, how much you transport the amp, how well you take care of it, etc.

There are stories of new tubes lasting 2 hours and there are stories of tubes lasting 20+ years. Generally, for this question the answer is this:

Power tubes should last about 2 years and you will know they are dying because the amp will start to lose volume and they will just die off.

Preamp tubes should last about 2-4 years and you will know they are dying because they often become 'overly microphonic' and will start to snap, crackle and pop.

About the only thing you can do to be preemptive is to determine what kind of new tubes you might (how you may want to change your tone slightly) and go ahead and order a full replacement or at least 1 or 2 preamp tubes. Power tubes almost always need to be ordered in matched sets.

you don't need to bias a Valveking either (they are non-adjustable fixed bias) so just plug n play.

Does that help? Do you need more info.
#3
^As an addendum, and it seems obvious, I'd say make sure you get the right tubes, especially for fixed bias amps. In that case, 6L6s would be the ones to make sure you get.

How do you want to change your tone?
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