Without which Jimi Hendrix could not have created the sounds that he did
. Woodstock, Star Spangled Banner - freaking
awesome.
Fender's most popular guitar amps are tube types for a reason. My humble belief is that tube types, aside from their inherent failures at
purity, also contribute a concurrent sympathetic response to the sounds around them. A
mechanical (grid vibrations), effect, ever so slightly behind the timing of the initial pick/strum/slide that adds a sounds dimension a solid state amp is mechanically
incapable of producing.
Not everyone's cup of tea, but I'm one of the "some people" crowd and it's music to my ears. I am a proud purist of the impure (musically speaking).