Haven't tried them but I've heard good things about the Yugoslav El 12au7's and 12ax7's ~$10 a tube based on the Telefunken design.
KP
KP
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...