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
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!
Oops, the Cardinals are my 300B pair. My 45s are an early Wavelength Silver pair commissioned by Larry Kay. My embarrassment.:)
Don't waste your time with all that old crap. Just get EML 45 tubes. The mesh Plate is sublime.
I am using 4x Eml 45 mesh tubes in parallel on a triode labs integrated amp. 

After over 20 years of being an audiophile , I would say that these tubes are the most pure sounding tubes being made. 

Surpassed my 300b,s and all other tube systems I’ve had over the years. 

The 45 mesh is the top.