Have been enjoying rolling 6SN7 tubes with an adaptor, I personally enjoy them a lot more than 12AU7! I have had a slight problem with one 6SN7 in particular and was wondering if anyone could explain what was going on.
my volume pot is aligned with 0 as 7 oclock. The tube produces loud, constant crackle in the right channel from 9 oclock to 4 oclock, but this crackle is barely audible from 7-9 oclock, and dead silent from 4-5 oclock (max volume). Once warmed up a bit, the crackling range is from 10oclock to 4 oclock.
I've never had a tube do this; the other 7 or so 6SN7s I've rolled into this adaptor have all been dead silent, with only one having a faint buzzing noise at the very max volume. I'm currently working around the situation by putting crack volume at max and -50dB on my DAC. I have tried reseating the tube and cleaning the pins. Any insight is appreciated!