I love classic valves built in the GE/RCA style as much as you guys do, but there is another level... nearly every tube we use and love has that silver getter inside... the brands are nearly limitless - RCA, Telefunken, GE, Western Electric, Valvo, Taylor, Sparton, Mullard, and on and on and on... they are all great.. but *none* of them would make this claim:
they are flat out saying that you can overload the tubes! other tubes would outgas, arc wildly, and then die.. (it is very entertaining to watch this, however!)... and the back lists these amazing specifications:
yeah... they rule... I have been running the same pair of 75tl's, sixteen hours a day, nearly every day, for nearly a decade now... total insanity.... and they were used when I got them!