Try these folks. I have bought tubes and electronic components from them several time. Good service and nice to deal with. I have purchased
their "Taylor" 811A's with generally good results. My understanding is that RF Parts actually does some basic testing in an attempt to cull out
bad tubes before shipping. I would strongly warn you that in today's manufacturing environment, the quality and initial failure
rate on tubes like the 811A is quite high, regardless of the source. Don't be stunned if you have a tube that goes bad.....just part of current reality.
The corollary is be sure your vendor is honest and has a warranty they will honor. That said, it is generally not economical to ship an 811A back for
a warranty claim.... shipping is as much as the tube!
435 S. Pacific St.
San Marcos, CA 92078
RF Parts CompanyRF Parts Company