I" have used PSVane tubes for two amplifiers, both in preamp and power sections. They are very good quality. It is a big advantage to be able to get matched sets easily rather than relying on NOS suppliers where matching and even availability are uncertain."
@chenry only 2 of the main 3 NOS tube dealers are in business, but there is no undertainty about matching and availbility with andy or brent jessee.
there are a next-tier sellers where theres no undertainty about quality.
there are plenty of reputable person-to-person sellers where qualirty carries no uncertainty as well.
availability? yeah. the current feeding frenzy has driven a few formerly-common tubes into near-extinction.
happy listening!