Originally posted by gyraf EF86 (aka 6267) is in top-ten of the widest used audio tubes.
It is The single most used small-signal audio pentode.
There's little chance it'll ever go out of production, so don't worry...
Well, that's good! I was just going by what David Bock told me a 'while' back. I really like my U95S.
Often after finishing a record I listen to the final product and find myself grabbing a track sheet asking, "Now, which mic did I use on *this* vocal?" Sure enough it's the U95S.