#1
I asked myself:

is it any good to buy a tube pedal or preamp for a full tube amp?
i really couldn't find anything, so now i'm asking you,
if you have a full tube amp, should you buy annything with tubes in it, will it inhance your sound or will it just do nothing?
#2
I imagine that it will give a more natural tube overdrive to boost the incoming signal with a tube power circuit