Tube Life of 6c45pi Tubes?

[ScottAstroNut]

I am just curious... what is the approximate expected lifetime of the 6c45pi tubes used in the Mainline?

Thanks!

 

[Doc B]

Dunno, we haven't worn any out yet. Typically that kind of mil spec Soviet tube was rated around 10,000 hours.

 

[ScottAstroNut]

Thanks, Doc! Although I use all my Bottlehead amps regularly, I probably use my Mainline the most, as I do a lot of late night listening when the family is asleep. It's good to know that I'm not likely to "run out of gas" with the Mainline anytime soon! With the current issues with Russian-made tubes, I was getting just a little paranoid.