Philo.Everyone seems to call up Kevin Deal at Upscale Audio.Maybe he has too much sway with systems out there!But I know folks who have bought Hifi from him and I was pleased with some replacement tubes I got.Tell your freind buying some New Old Stock (NOS) tubes explain what they and that especially ina pre they can be way to.I am sure some VTL owner will follow up with set in that pre though.