Four of these tubes are new, never used, while 2 have been tested as drivers in an SET amp for a few hours. TubeDepot gets $35 per pair for those; these 6 will be only $50 plus $10 for Priority Mail. PayPal, personal checks, and CCs/MOs happily accepted.
Pls e-mail me directly at jeffreybehr(at)cox(dot)net for more-prompt reply.