Today, I did some tube rolling in my EarFuzz 5W (based on a GA5): I swapped between rectifiers (5Y3), something I don't remember ever trying, because for me a rectifier is just here to convert/give juice to the amp I remember having a Bendix 6106 (almost never used it, bought it years ago when they were decently priced) somewhere in my NOS tubes stash. I swapped between the GE 5Y3GT that I had in the amp since a few months, and the Bendix. I swear I can hear a better/tighter bottom end, and it seems that the amp is a tiny bit louder, using the GE. I did the swap maybe 10 or 12 times to be sure I really heard a difference, and, for the life of me, I did ! I would have never thought there would be a difference between rectifiers ! What say you, oh tube amps gurus ?