45 tube types


I'm looking at getting a 2A3/45-based amp and so, for the heck of it, I hit a couple of the online tube stores and didn't see a single one. Are there variations on the 45 tube, numbered in some other way, that I'm simply not seeing?
ballywho
This place may have some.I don't know anything about this seller.[http://www.audiotubes.com/audtube.htm#aud%20list]
I cannot believe nobody has posted this yet, but the best 45s are actually NEW PRODUCTION anyway - TJ (Full Music) and EML.

They are not cheap but last a long time.
A friend uses the EML meshplate 45s. He really likes that tube a lot (he has many NOS variants, including old globe 45s).

I use both meshplate and solid plate EML 2a3s. Both are very good, particularly the meshplate tubes.

My only caveat is that the website lists some very specific operating conditions. The recommendations should be strictly followed. EML tubes cannot be pushed excessively hard--that dramatically shortens life (it shortens the life of all tubes, but, the EMLs seem to be a bit more delicate in that respect).

If you have any questions about the use of EML tubes in your particular gear, contact George Lenz at Tubes USA (US seller of these tubes). He is VERY helpful, forthright and conscientious.
Larryi, my Wavelength Cardinal Signature XS pair is new to me as are 45's in general. I appreciate your quick response and suggestion. BTW, I also use the Naim CD555.
VERY excellent system you have.. WOW!