I've aslo tried the 6201 ( 12at7 )Gold pin Mullard and found it sounded like someone layed a blanket over the speakers. Too dark sounding for me. Many like the Mullard 4024 ,but I haven't tried them .
Another 12at7 thats pretty cheap and sounds pretty good ( but not as good as the B/boy ) is a Jan Ge 12at7 ( green print ). Mid 80s vintage. Kind of a sleeper.
Another 12at7 thats pretty cheap and sounds pretty good ( but not as good as the B/boy ) is a Jan Ge 12at7 ( green print ). Mid 80s vintage. Kind of a sleeper.