My favorite "12au7" were the industrial equivalent pair of 1952 "D" getter Hytron 5814s. The best part, I got them for $10 on Ebay. I no longer have a component that uses 12au7 / 5963 / 5814 but will not be parting with these ever.
12au7
need to know what pair of 12au7 sounds great in a preamp
i have tried rca clear top sound very good that's the sound iam looking for but more of it...japan brand 12au7 no magic...the siemans were ok...
i have tried rca clear top sound very good that's the sound iam looking for but more of it...japan brand 12au7 no magic...the siemans were ok...