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MULLARD 12au7 longevity

I bought a pair of these from Andy’s Tube Services years ago for my Rogue RP-1.  Thought they would have crapped out by now but they still sound good. He told me they would last a long time. Anybody got any reports on how long you have had these units in service?

 

 

128x128jbuhl
mrfrito's avatar
mrfrito
30 posts
 

Im using Mullard CV4003 in a Rogue RP7 now . I used them in a Rogue Pharoha for six years before i Upgraded my system . They still sound great and I hate the thought of replacing them . 

 

tksteingraber's avatar
tksteingraber
634 posts
 

In this crazy hobby…Longer than you want to keep the component they are in…🤣

jbuhl's avatar
jbuhl OP
996 posts
 

Thanks guys!

inna
7,309 posts
 

What about NOS output tubes ? Do they last longer than modern tubes ?

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