Originally posted by U2Nick:[..]
If you use a tube amp "regularly," how often would the valves need to be replaced?
"Regular" being something like...
1/4 - 1/2 volume three days a week for about two hours each day, with one day of 3/4 to full power for four hours.
Meh. Like I said, I use mine about a quarter the way up usually, for probably 1-2 hours a day, everyday, and the only thing I've ever had to replace were the tubes because a few of them blew, I guess they were bad from the beginning. Other than that it sounds fine, and when I brought it in for a tube change, which was almost 2 years after I'd had it, they said everything else was hunky dory. I can see maybe someone that gigs regularily to a very large crowd WITHOUT a mic'd amp system needing to do an oil change every so often, but for what you would use it for, you'd be fine.
