Smart buying buying a preamp with tubes anot avail except as made by preamp manuf?

Why would a preamp manuf design preamp where he is only person making the tubes?

stay away?

emergingsoul01-14-2022 7:48pm

stereo5 Details Discussions Posts This discussion Message User 6,250 posts 01-14-2022 at 07:57pm Copy Comment URL Report Comment Edit Delete Which manufacturer are you referring to?
adsell Details Discussions Posts This discussion Message User 71 posts 01-14-2022 at 07:59pm Copy Comment URL Report Comment Edit Delete There are only so many tube makers in the world so would suspect they have called out design to one of the mfg. What is the mfg of the preamp? do they call out the tube spec?
jperry Details Discussions Posts This discussion Message User 2,430 posts 01-14-2022 at 08:11pm Copy Comment URL Report Comment Edit Delete You need to be more specific if you want help with this question.
Post removed Jan 14, 2022