Is it a OK to leave tube pre-amps powede up 24/7


I’m relatively new to tubes in my hifi setup. Recently went from SS pre to tube ARC pre-amp and a Croft phono stage.

I have always kept all of my SS gear powered up 24/7(and still do), but I shut down my pre-amp and phono stage now after I am done listening for the day. I power them up at least a half of an hour before I put anything into play.

I would prefer to leave my tube gear on all the time, but am concerned about premature tube wear.

What would the tube folk here think about 24/7?

128x128crazyeddy
It depends on preamp design as stated above but Audible Illusion tube preamps have their tubes lit even after the power button is off. According to Audible Illusions this lenghthens the life of the tubes.

1/2 hour is a nice time frame for warm up


if you are breaking in equipment also do not leave it on 24/7

patience is a virtue and you will be rewarded soon enough


I have a friend who will not sell any of his NOS tubes to a guy who will leave them on 24/7 just to see those famous blue lights shining behind the face plate glass

@audiotomb,
 I understand a concern of vintage NOS tube dealer, but at the same time you never know if one will be running them 24/7 non-stop, but according to most of contributor's here with "deep experience and knowledge", some, as turn out, definitely will...

Cant's tubes short, and even explode?  Is it wise to leave them on if you are not around to leap up and turn the system off?