A clear and warmer sounding tube,it is quite a different personality from the norm,in a bright guitar amp like a el84 amp,these warm up the sound and give rounder notes,no thin notes exsist on this tube,no distortion is noticable when pushed on my 6260 on the clean channel!
It didnt give up the blues distortion ,so it is idle now !
A run in a mono block stereo amps, could be a must !

Rating: [4 of 5 Stars!]